Use ac interface in cross-connect view to bind a Layer 3 interfaceto a cross-connect and enter cross-connect AC view, or enter an existing cross-connect AC view.

Use ac interface in auto-discovery cross-connect view to bind a Layer 3 interface or an Ethernet service instance to a cross-connect.

Use undo ac interface to remove the binding.

Syntax

ac interface interface-type interface-number [ access-mode { ethernet | vlan } ] [ track track-entry-number&<1-15> ]

undo ac interface interface-type interface-number

Default

No Layer 3 interface is bound to a cross-connect.

Views

Cross-connect view

Auto-discovery cross-connect view

Predefined user roles

network-admin

Parameters

interface-type interface-number: Specifies an interface by its type and number.

access-mode: Specifies the access mode.

· When the AC is a Layer 3 subinterface, the default access mode is VLAN.

· When the AC is a Layer 3 interface, the default access mode is Ethernet.

ethernet: Specifies the Ethernet access mode.

vlan: Specifies the VLAN access mode.

track track-entry-number&<1-15>: Specifies a space-separated list of up to 15 track entry numbers in the range of 1 to 1024. The AC is up only if a minimum of one associated track entry is in positive state.

Usage guidelines

After you execute this command, packets received from the Layer 3 interfaceare forwarded to the bound PW or another AC.

The access mode determines how the PE treats the VLAN tag in Ethernet frames received from the AC. It also determines how the PE forwards Ethernet frames to the AC.

· VLAN access mode—Ethernet frames received from the AC must carry a VLAN tag in the Ethernet header. The VLAN tag is called a P-tag assigned by the service provider. Ethernet frames sent to the AC must also carry the P-tag.

· Ethernet access mode—If Ethernet frames from the AC have a VLAN tag in the header, the VLAN tag is called a U-tag, and the PE ignores it. Ethernet frames sent to the AC do not carry the P-tag.

Examples

# Bind GigabitEthernet 1/0/1 to cross-connect aaa in cross-connect group vpna.

[Sysname] xconnect-group vpna

[Sysname-xcg-vpna] connection aaa

[Sysname-xcg-vpna-aaa] ac interface gigabitethernet 1/0/1

[Sysname-xcg-vpna-aaa-GigabitEthernet1/0/1]

Related commands

connection

display l2vpn interface

pw-type

ac statistics enable

Use ac statistics enable to enable packet statistics on a Layer 3 interface.

Use undo ac statistics enable to disable packet statistics a Layer 3 interface.

Syntax

ac statistics enable

undo ac statistics enable

Default

Packet statistics is disabled on a Layer 3 interface.

Views

Layer 3 Ethernet interface view

Layer 3 aggregate interface view

Predefined user roles

network-admin

Usage guidelines

This command enables packet statistics only on a Layer 3 interface that has been bound to a cross-connect. If you change the bound cross-connect during the statistics collection, the packet statistics are re-collected.

To display the collected packet statistics, use the display l2vpn interface verbose command.

Examples

# Enable packet statistics on Layer 3 interface GigabitEthernet 1/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] ac statistics enable

Related commands

display l2vpn interface verbose

reset l2vpn statistics ac

address-family l2vpn

Use address-family l2vpn to create the BGP L2VPN address family and enter its view, or enter the view of the existing BGP L2VPN address family view.

Use undo address-family l2vpn to delete the BGP L2VPN address family and all settings from BGP L2VPN address family view.

Syntax

address-family l2vpn

undo address-family l2vpn

Default

No BGP L2VPN address family exists.

Views

BGP instance view

Predefined user roles

network-admin

Usage guidelines

To establish a BGP PW to a remote PE, you must execute the peer enable command in BGP L2VPN address family view to enable the remote PE.

Examples

# Create the BGP L2VPN address family and enter BGP L2VPN address family view.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address-family l2vpn

[Sysname-bgp-default-l2vpn]

Related commands

peer enable (Layer 3—IP Routing Command Reference)

auto-discovery

Use auto-discovery to enable a cross-connect group to automatically discover neighbors and create PWs through BGP, and enter auto-discovery cross-connect group view.

Use undo auto-discovery to restore the default.

Syntax

auto-discovery bgp

undo auto-discovery

Default

A cross-connect group does not use BGP to automatically discover neighbors and create PWs.

Views

Cross-connect group view

Predefined user roles

network-admin

Parameters

bgp: Enables the cross-connect group to automatically discover neighbors and create PWs through BGP.

Usage guidelines

In auto-discovery cross-connect group view, you can configure parameters such as the local site, remote site, and route target for BGP. The local PE can use BGP to discover remote PEs and create PWs.

Examples

# Enable cross-connect group bbb to automatically discover neighbors and create PWs through BGP, and enter auto-discovery cross-connect group view.

<Sysname> system-view

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] auto-discovery bgp

[Sysname-xcg-bbb-auto]

Related commands

display l2vpn pw

display l2vpn xconnect-group

backup-peer

Use backup-peer to configure a backup PW for a cross-connect and enter cross-connect backup PW view, or enter the view of an existing cross-connect backup PW.

Use undo backup-peer to remove a backup PW.

Syntax

backup-peer ip-address pw-id pw-id [ in-label label-value out-label label-value ] [ pw-class class-name | tunnel-policy tunnel-policy-name ] *

undo backup-peer ip-address pw-id pw-id

Default

No backup PW exists for a cross-connect.

Views

Cross-connect PW view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the LSR ID of the peer PE on the backup PW.

pw-id pw-id: Specifies a PW ID for the backup PW, in the range of 1 to 4294967295.

in-label label-value: Specifies the incoming label for the backup PW. The value range for this argument is 16 to 1023.

out-label label-value: Specifies the outgoing label for the backup PW, in the range of 16 to 1048575.

pw-class class-name: Specifies a PW class by its name, a case-sensitive string of 1 to 19 characters. You can specify a PW class to configure the PW data encapsulation type and control word for the backup PW. If you do not specify a PW class, the PW data encapsulation type is determined by the link type of the interface. The control word feature is not supported for PW data encapsulation types that do not require using control word.

tunnel-policy tunnel-policy-name: Specifies a tunnel policy by its name, a case-sensitive string of 1 to 19 characters. If you do not specify a tunnel policy, the default tunnel policy is used for the backup PW.

Usage guidelines

This command configures a backup PW to implement PW redundancy. The backup PW is used when the primary PW fails.

To configure a backup static PW, you must specify the in-label and out-label. To configure a backup LDP PW, you do not need to specify the in-label and out-label.

The peer LSR ID and PW ID for a backup PW must be different from those for an existing VPLS PW, cross-connect PW, or cross-connect bypass PW.

PW redundancy and bypass PW are mutually exclusive with each other. If you have configured a backup PW for a cross-connect PW by using the backup-peer command, you cannot configure a bypass PW for the cross-connect PW by using the bypass-peer command, and vice versa.

PW redundancy and multi-segment PW are mutually exclusive with each other. If you have configured two PWs by using the peer command, you cannot configure a backup PW for the PWs by using the backup-peer command, and vice versa.

A static PW must have a different incoming label than an existing static LSP or static CRLSP. If they are the same, the static PW is not available, even if you change the incoming label of the static LSP or static CRLSP. To make the static PW available, delete the static PW, and reconfigure it with an unused incoming label.

Examples

# Configure a primary PW and a backup PW for cross-connect pw2pw in cross-connect group vpn2. The primary PW is destined to 6.6.6.6 and has a PW ID of 100. The backup PW is destined to 7.7.7.7 and has a PW ID of 200.

<Sysname> system-view

[Sysname] xconnect-group vpn2

[Sysname-xcg-vpn2] connection pw2pw

[Sysname-xcg-vpn2-pw2pw] peer 6.6.6.6 pw-id 100 in-label 16 out-label 17

[Sysname-xcg-vpn2-pw2pw-6.6.6.6-100] backup-peer 7.7.7.7 pw-id 200 in-label 18 out-label 19

[Sysname-xcg-vpn2-pw2pw-6.6.6.6-100-backup]

Related commands

bypass-peer

display l2vpn ldp

display l2vpn pw

peer

bypass-peer

Use bypass-peer to configure a bypass PW for a cross-connect and enter cross-connect bypass PW view, or enter the view of an existing cross-connect bypass PW.

Use undo bypass-peer to remove a bypass PW.

Command

bypass-peer ip-address pw-id pw-id [ pw-class class-name | tunnel-policy tunnel-policy-name ] *

undo bypass-peer ip-address pw-id pw-id

Default

No bypass PW exists for a cross-connect.

Views

Cross-connect PW view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the LSR ID of the peer PE on the bypass PW.

pw-id pw-id: Specifies a PW ID for the bypass PW, in the range of 1 to 4294967295.

pw-class class-name: Specifies a PW class by its name, a case-sensitive string of 1 to 19 characters. You can specify a PW class to configure the PW data encapsulation type and control word for the bypass PW. If you do not specify a PW class, the PW data encapsulation type is determined by the link type of the interface. The control word feature is not supported for PW data encapsulation types that do not require using control word.

Usage guidelines

The peer LSR ID and PW ID for a bypass PW must be different from those for an existing VPLS PW, cross-connect PW, or cross-connect backup PW.

Bypass PW and PW redundancy are mutually exclusive with each other. If you have configured a backup PW for a cross-connect PW by using the backup-peer command, you cannot configure a bypass PW for the cross-connect PW by using the bypass-peer command, and vice versa.

AC-bypass PW and local connection are mutually exclusive with each other. If you have associated two ACs by in a cross-connect, you cannot configure AC-bypass PWs for those two ACs in the cross-connect, and vice versa. (To associate two ACs in a cross-connect, use the ac interface command in cross-connect view. To configure AC-bypass PWs, use the bypass-peer command in cross-connect AC view.)

Bypass PW and multi-segment PW are mutually exclusive with each other. If you have configured two PWs by using the peer command, you cannot configure a bypass PW for the PWs by using the bypass-peer command, and vice versa.

Examples

# Configure a primary PW and a bypass PW for cross-connect pw2pw in cross-connect group vpn2. The primary PW is destined for 6.6.6.6 and has a PW ID of 100. The bypass PW is destined for 7.7.7.7 and has a PW ID of 200.

<Sysname> system-view

[Sysname] xconnect-group vpn2

[Sysname-xcg-vpn2] connection pw2pw

[Sysname-xcg-vpn2-pw2pw] peer 6.6.6.6 pw-id 100

[Sysname-xcg-vpn2-pw2pw-6.6.6.6-100] bypass-peer 7.7.7.7 pw-id 200

[Sysname-xcg-vpn2-pw2pw-6.6.6.6-100-bypass]

Related commands

backup-peer

display l2vpn ldp

display l2vpn pw

peer

ccc

Use ccc to create a remote Circuit Cross Connect (CCC) connection.

Use undo ccc to restore the default.

Syntax

ccc in-label in-label-value out-label out-label-value { nexthop nexthop | out-interface interface-type interface-number } [ pw-class class-name ]

undo ccc

Default

No remote CCC connections exist.

Views

Cross-connect view

Predefined user roles

network-admin

Parameters

in-label in-label-value: Specifies an incoming label. The value range for the in-label-value argument is 16 to 1023.

out-label out-label-value: Specifies an outgoing label in the range of 16 to 1048575.

nexthop nexthop: Specifies the IP address of the next hop.

out-interface interface-type interface-number: Specifies the outgoing interface by its type and number.

pw-class class-name: Specifies a PW class by its name, a case-sensitive string of 1 to 19 characters. You can specify a PW class to configure the PW data encapsulation type and control word. If you do not specify a PW class, the PW data encapsulation type is determined by the interface type. The control word feature is not supported for PW data encapsulation types that do not require using control word.

Usage guidelines

A remote CCC connection is a static L2VPN connection that is manually created by specifying the incoming and outgoing labels on two PEs. A remote CCC connection does not need a public tunnel, but it requires configuring two static LSPs in opposite directions on each P device between the two PEs. CCC employs only one level of label to transfer packets. The static LSPs on the P devices transfer data only for the CCC connection.

This command must be configured on both the local and remote PEs to create a remote CCC connection. The outgoing label specified on a device must be the same as the incoming label specified on the next hop device.

After you create a remote CCC connection, you must execute the ac interface command to bind an interface. The PE can forward packets from the interfaceto the remote CCC connection.

Use the out-interface keyword to specify the outgoing interface only on a point-to-point link. On other interfaces, for example, Layer 3 Ethernet interfaces,you must use the nexthop keyword to specify the next hop IP address.

For the PEs to forward packets over a CCC connection, make sure the two PEs have the same CCC connection settings such as the encapsulation type and control word feature.

Examples

# Create a remote CCC connection that has incoming label 100, outgoing label 200, and next hop 10.1.1.1, and uses PW class pwc1.

<Sysname> system-view

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] connection ccc1

[Sysname-xcg-bbb-ccc1] ccc in-label 100 out-label 200 nexthop 10.1.1.1 pw-class pwc1

Related commands

ac interface

display l2vpn pw

connection

Use connection to create a cross-connect and enter its view, or enter the view of an existing cross-connect.

Use undo connection to remove a cross-connect.

Syntax

connection connection-name

undo connection connection-name

Default

No cross-connects exist.

Views

Cross-connect group view

Predefined user roles

network-admin

Parameters

connection-name: Specifies the name of the cross-connect, a case-sensitive string of 1 to 20 characters, excluding hyphens.

Usage guidelines

A cross-connect is a point-to-point connection.

You can perform the following operations in cross-connect view:

· Execute ac interface and peer to connect an AC to a PW, so the PE can forward packets between the AC and the PW.

· Execute ac interface twice to connect two ACs, so the PE can forward packets between the two ACs.

· Execute peer twice to connect two PWs to form a multi-segment PW.

· Execute ac interface and ccc to connect an AC to a remote CCC connection, so the PE can forward packets between the AC and the remote CCC connection.

Examples

# Create cross-connect ac2pw for cross-connect group vpn1 and enter cross-connect view.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1] connection ac2pw

[Sysname-xcg-vpn1-ac2pw]

connection remote-site-id

Use connection remote-site-id to create an auto-discovery cross-connect and enter its view, or enter the view of an existing auto-discovery cross-connect.

Use undo connection remote-site-id to remove the auto-discovery cross-connect.

Syntax

connection remote-site-id remote-site-id

undo connection remote-site-id remote-site-id

Default

No auto-discovery cross-connects exist.

Views

Site view

Predefined user roles

network-admin

Parameters

remote-site-id: Specifies a remote site by its ID in the range of 0 to 256.

Usage guidelines

This command creates an auto-discovery cross-connect that uses BGP to establish a PW from the local site to the specified remote site.

In auto-discovery cross-connect view, you can execute ac interface to bind an AC to the auto-discovery cross-connect. The PE can forward packets between the AC and the PW.

Examples

# Create an auto-discovery cross-connect from site 1 to site 3 in site view, and enter auto-discovery cross-connect view.

<Sysname> system-view

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] auto-discovery bgp

[Sysname-xcg-bbb-auto] site 1 range 10

[Sysname-xcg-bbb-auto-1] connection remote-site-id 3

[Sysname-xcg-bbb-auto-1-3]

control-word enable

Use control-word enable to enable the control word feature.

Use undo control-word enable to disable the control word feature.

Syntax

control-word enable

undo control-word enable

Default

The control word feature is disabled.

Views

PW class view

Predefined user roles

network-admin

Usage guidelines

The control word field is between the MPLS label stack and the Layer 2 data. It carries control information for the Layer 2 frame, for example, the sequence number.

The control word feature can avoid fragment disorder. In multipath forwarding, fragments received might be disordered. You can configure the control word feature so the device reorders the fragments according to the sequence number carried in the control word field.

When the PW data encapsulation type is Ethernet or VLAN, the control word field is optional. Packets transmitted on the PW carry the control word field only when control word is enabled on both PEs.

Examples

# Enable the control word feature for PW class pw100.

<Sysname> system-view

[Sysname] pw-class pw100

[Sysname-pw-pw100] control-word enable

Related commands

display l2vpn pw-class

description

Use description to configure a description for a cross-connect group.

Use undo description to restore the default.

Syntax

description text

undo description

Default

No description is configured for a cross-connect group.

Views

Cross-connect group view

Predefined user roles

network-admin

Parameters

text: Specifies a description, a case-sensitive string of 1 to 80 characters.

Examples

# Configure a description of vpws for vpn2 for cross-connect group vpn2.

<Sysname> system-view

[Sysname] xconnect-group vpn2

[Sysname-xcg-vpn2] description vpws for vpn2

Related commands

display l2vpn xconnect-group

display bgp l2vpn signaling

Use display bgp l2vpn signaling to display MPLS L2VPN label block information discovered by BGP.

Syntax

display bgp [ instance instance-name ] l2vpn signaling [ peer ip-address { advertised | received } [ statistics ] | route-distinguisher route-distinguisher [ site-id site-id [ label-offset label-offset [ advertise-info ] ] ] | statistics ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

instance instance-name: Displays MPLS L2VPN label block information in a BGP instance. The instance-name argument specifies the BGP instance name, a case-sensitive string of 1 to 31 characters. If you do not specify a BGP instance, this command displays MPLS L2VPN label block information in the default BGP instance.

peer ip-address: Displays MPLS L2VPN label block information advertised to or received from a BGP peer. The ip-address argument specifies the peer IP address.

advertised: Displays MPLS L2VPN label block information advertised to the BGP peer.

received: Displays MPLS L2VPN label block information received from the BGP peer.

statistics: Displays BGP MPLS L2VPN label block statistics.

route-distinguisher route-distinguisher: Displays BGP MPLS L2VPN label block information for the route distinguisher (RD), which is a string of 3 to 21 characters. You can specify an RD in one of the following formats:

· 16-bit AS number:32-bit user-defined number. For example, 101:3.

· 32-bit IP address:16-bit user-defined number. For example, 192.168.122.15:1.

· 32-bit AS number:16-bit user-defined number, where the AS number must be equal to or greater than 65536. For example, 65536:1.

site-id site-id: Displays BGP MPLS L2VPN label block information for a site. The site-id argument specifies the site ID. The site ID range is 0 to 65535.

label-offset label-offset: Displays information about the BGP MPLS L2VPN label block with an offset. The label-offset argument specifies the offset in the range of 0 to 65535.

advertise-info: Displays BGP MPLS L2VPN label block advertisement information.

Usage guidelines

If you do not specify any parameters, this command displays brief information about all BGP MPLS L2VPN label blocks.

Examples

# Display brief information about all BGP MPLS L2VPN label blocks.

<Sysname> display bgp l2vpn signaling

BGP local router ID is 192.168.1.135

Status codes: * - valid, > - best, d - dampened, h - history,

s - suppressed, S - stale, i - internal, e - external

Origin: i - IGP, e - EGP, ? - incomplete

Total number of label blocks: 2

Route distinguisher: 2:2

Total number of label blocks: 2

Site ID LB offset LB range LB base Nexthop

* > 1 0 10 1034 0.0.0.0

* >i 2 0 10 1162 192.3.3.3

Table 1 Command output

Field	Description
Status codes	Status codes: · * – valid—Valid route. · > – best—Best route. · d – damped—Dampened route. · h – history—History route. · s – suppressed—Suppressed route. · S – Stale—Stale route. · i – internal—Internal route. · e – external—External route.
Origin	Origin of the label block: · i – IGP—Originated in the AS. · e – EGP—Learned through EGP. · ? – incomplete—Unknown origin.
LB offset	Offset of the label block.
LB range	Size of the label block.
LB base	Initial value of the label block.

‌

# Display detailed information about the BGP MPLS L2VPN label block that has RD 2:2, site ID 2, and offset 0.

<Sysname> display bgp l2vpn signaling route-distinguisher 2:2 site-id 2 label-offset 0

BGP local router ID: 192.168.1.135

Local AS number: 100

Route distinguisher: 2:2

Total number of label blocks: 1

Paths: 1 available, 1 best

From : 192.3.3.3 (192.168.1.140)

Original nexthop: 192.3.3.3

Ext-Community : <RT: 2:2>, <L2VPN info: MTU 1500, Encap type VLAN>

AS-path : (null)

Origin : igp

Attribute value : localpref 100, pref-val 0

Site ID : 2

LB offset : 0

LB base : 1162

LB range : 10

State : valid, internal, best

CSV : 0x01000ABFFF

Table 2 Command output

Field	Description
Paths	Number of label block messages: · available—Number of available label block messages. · best—Number of best label block messages.
From	IP address of the peer from which the label block was received.
Original nexthop	Original next hop. If the label block was obtained from a BGP route update, this field displays the next hop address in that BGP route update.
Ext-Community	Extended community attribute: · RT—Route target. · L2VPN info—L2VPN information, including the MTU and encapsulation type.
AS-path	AS path attribute, which records all ASs that the label block passed to prevent routing loops.
Origin	Origin of the label block: · igp—Originated in the AS. · egp—Learned through EGP. · incomplete—Unknown origin.
Attribute value	Attribute of the label block: · MED—Multi-Exit Discriminator attribute. · localpref—Local preference value. · pref-val—Preferred value. · pre—Preference value.
LB offset	Offset of the label block.
LB base	Initial value of the label block.
LB range	Size of the label block.
State	State of the label block: · valid. · internal. · external. · local. · best.
CSV	Circuit status vector.

‌

# Display BGP advertisement information for the specified MPLS L2VPN label block.

<Sysname> display bgp l2vpn signaling route-distinguisher 2:2 site-id 1 label-offset 0 advertise-info

BGP local router ID: 192.168.1.135

Local AS number: 100

Route distinguisher: 2:2

Total number of label blocks: 1

Paths: 1 best

Site ID : 1

LB offset : 0

LB base : 1034

LB range : 10

CSV : 0x01000ADFFF

Advertised to peers (1 in total):

192.3.3.3

Table 3 Command output

Field	Description
Paths	Number of label block messages: · available—Number of available label block messages. · best—Number of best label block messages.
LB offset	Offset of the label block.
LB base	Initial value of the label block.
LB range	Size of the label block.
CSV	Circuit status vector.
Advertised to peers (1 in total)	Peers to which the label block has been advertised.

‌

display l2vpn bgp

Use display l2vpn bgp to display MPLS L2VPN label block information.

Syntax

display l2vpn bgp [ local | peer ip-address ] [ xconnect-group group-name ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

local: Displays local MPLS L2VPN label block information.

peer ip-address: Displays MPLS L2VPN label block information received from the remote peer.

xconnect-group group-name: Displays MPLS L2VPN label block information for a cross-connect group. The group-name argument specifies the cross-connect group name, a case-sensitive string of 1 to 31 characters. If you do not specify a cross-connect group, this command displays MPLS L2VPN label block information for all cross-connect groups.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

Usage guidelines

If you specify a peer, this command displays both the label block received from the peer and the local label block that matches the received label block.

If you do not specify a peer or local, this command displays label blocks received from all peers and local label blocks that match the received ones. If no local label block matches the received ones, the command only displays the label blocks received from all peers.

A local label block matches a received label block if the following condition is met: local label block LO ≤ remote site ID ≤ local label block LO + local label block LR – 1.

Examples

# Display brief information about label blocks received from all peers.

<Sysname> display l2vpn bgp

Total number of BGP PWs: 1, 1 up, 0 down

Xconnect-group Name: vpnb, Site ID:1

Rmt Site Offset RD Nexthop In/Out Label State

2 0 2:2 192.3.3.3 1036/1163 Up

Table 4 Command output

Field	Description
Rmt Site	ID of the remote site.
Offset	Offset of the label block.

‌

# Display detailed information about label blocks received from all peers.

<Sysname> display l2vpn bgp verbose

Xconnect-group Name: vpnb, Site ID:1

Remote Site ID : 2

Offset : 0

RD : 2:2

PW State : Up

Encapsulation : VLAN

MTU : 1500

Nexthop : 192.3.3.3

Local VC Label : 1036

Remote VC Label : 1163

Link ID : 0x10000000

Local Label Block : 1034/10/0

Remote Label Block : 1162/10/0

Local Flow Label : Send

Reomote Flow Label : Recv

Export Route Target: 2:2

Table 5 Command output

Field	Description
Local VC Label	Incoming label of the PW.
Remote VC Label	Outgoing label of the PW.
Link ID	Link ID of the PW.
Local Label Block	Local label block: label base/label range/Label-block offset.
Remote Label Block	Remote label block: label base/label range/Label-block offset.
Local Flow Label	This field is not supported in the current software version. Flow label capability of the local PE: · Both—Flow label sending and receiving capabilities. · Send—Flow label sending capability. · Recv—Flow label receiving capability. This field displays a hyphen (-) if the flow label feature is disabled.
Remote Flow Label	This field is not supported in the current software version. Flow label capability of the remote PE: · Both—Flow label sending and receiving capabilities. · Send—Flow label sending capability. · Recv—Flow label receiving capability. This field displays a hyphen (-) if the flow label feature is disabled.
Export Route Target	Route target of the remote label block.

‌

# Display brief information about all local label blocks.

<Sysname> display l2vpn bgp local

Xconnect-group Name: vpnb

Site Offset Range Label Base RD

1 0 10 1034 2:2

# Display detailed information about all local label blocks.

<Sysname> display l2vpn bgp local verbose

Xconnect-group Name: vpnb

Site ID : 1

Offset : 0

RD : 2:2

Range : 10

Label Base : 1034

Link ID : 1

Table 6 Command output

Field	Description
Offset	Offset of the label block.
RD	RD of the label block. If no RD is configured, this field displays a hyphen (-).
Range	Range of the label block.
Label Base	Initial value of the label block.
Link ID	Link ID of the PW established using the label block. The link ID is fixed to 1 because an MPLS L2VPN cross-connect can establish only one BGP PW.

‌

Related commands

display l2vpn pw

display l2vpn forwarding

Use display l2vpn forwarding to display cross-connect forwarding information.

Syntax

display l2vpn forwarding { ac | pw } [ xconnect-group group-name ] [ slot slot-number ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

ac: Displays AC forwarding information.

pw: Displays PW forwarding information.

xconnect-group group-name: Displays forwarding information for a cross-connect group. The group-name argument specifies the cross-connect group name, a case-sensitive string of 1 to 31 characters. If you do not specify a group, this command displays forwarding information for all cross-connect groups.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays cross-connect forwarding information on the active MPU.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

Examples

# Display brief AC forwarding information for all cross-connect groups.

<Sysname> display l2vpn forwarding ac

Total number of cross-connections: 1

Total number of ACs: 1 up, 0 down

AC Xconnect-group Name Link ID State

GE1/0/1 1 0x0 Up

Table 7 Command output

Field	Description
Total number of cross-connections	Total number of cross-connects, including cross-connects not bound to any ACs.
Total number of ACs	Total number of ACs in up state and down state, respectively.
AC	AC type: Layer 3 interface.
State	State of the AC, which can be Up or Down.

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# Display detailed AC forwarding information for all cross-connect groups.

Xconnect-group Name: vpws1

Connection Name: actopw

Interface: GE1/0/1

Link ID : 0x1

Access Mode : Ethernet

Redundancy Mode : All-active

DF State : DF

Connection Name: actoac

Interface: GE1/0/2

Link ID : 0x0

Access Mode : Ethernet

Interface: GE1/0/3

Link ID : 0x1

Access Mode : Ethernet

Reflector :

IP Address : 100.1.1.4

MAC Address : 8850-fc51-5cee

Src Port : 200

Dst Port : 201

State : Ready

Table 8 Command output

Field	Description
Xconnect-group Name	Cross-connect group name.
Connection Name	Cross-connect name.
Access Mode	AC access mode: · VLAN. · Ethernet.
Redundancy Mode	Redundancy mode of the Ethernet segment (ES): · All-active—All-active mode. · Single-active—Single-active mode. This field is not displayed if the interface is not configured with an Ethernet Segment Identifier (ESI).
Reflector	Packet reflection information.
IP Address	Destination IP address to be reflected.
MAC Address	Destination MAC address to be reflected.
Src Port	Source UDP port to be reflected.
Dst Port	Destination UDP port to be reflected.
State	Packet reflection deployment state: · Ready—The packet reflection information has been deployed to the drive. · Not ready—The packet reflection information has not been deployed to the drive.

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# Display brief PW forwarding information for all cross-connect groups.

<Sysname> display l2vpn forwarding pw

Total number of cross-connections: 1

Total number of PWs: 2, 2 up, 0 blocked, 0 down

Xconnect-group Name In/Out Label NID Link ID State

vpn1 1279/1151 1025 0x10000000 Up

vpn1 1278/1151 1027 0x10000001 Up

Table 9 Command output

Field	Description
Total number of cross-connections	Total number of cross-connects, including those not bound to any PW.
In/Out Label	Incoming and outgoing labels of the PW. A hyphen (-) indicates that no label exists.
NID	NHLFE ID for the public tunnel that carries the PW. If equal-cost tunnels are available, this field displays multiple NIDs. If no tunnel is available, this field displays None.
State	PW state: Up, Down, or Blocked. Blocked indicates that the PW is a backup PW or bypass PW.

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# Display detailed PW forwarding information for all cross-connect groups.

<Sysname> display l2vpn forwarding pw verbose

Xconnect-group Name: vpn1

Connection Name: ldp

Link ID: 0x10000000

PW Type : VLAN PW State : Up

In Label : 1279 Out Label: 1151

MTU : 1500

PW Attributes : Main

VCCV CC : Router-Alert

VCCV BFD : Fault Detection with BFD

Flow Label : Send

Tunnel Group ID : 0x60000000

Tunnel NHLFE IDs: 1025

Link ID: 0x10000001

PW Type : VLAN PW State : Up

In Label : 1278 Out Label: 1151

MTU : 1500

PW Attributes : Main

VCCV CC : Router-Alert

VCCV BFD : Fault Detection with BFD

Flow Label : Send

Tunnel Group ID : 0x160000001

Tunnel NHLFE IDs: 1027

Table 10 Command output

Field	Description
PW State	PW state: Up, Down, or Blocked. Blocked indicates that the PW is a backup PW or bypass PW.
In Label	Incoming label of the PW. A hyphen (-) indicates that no label exists.
Out Label	Outgoing label of the PW. A hyphen (-) indicates that no label exists.
PW Attributes	PW attribute: · Main—Primary PW. · Backup—Backup PW. · Bypass—Bypass PW. · AC-bypass—The PW is an AC bypass. This attribute is not supported in the current software version. · PW-bypass—The PW is a PW bypass. This attribute is not supported in the current software version. · ECMP—The PW is an ECMP PW.
VCCV CC	VCCV CC type: · Control-Word—Control word. · Router-Alert—MPLS Router Alert Label. · TTL—TTL expiry (MPLS PW Label with TTL=1.) This field displays a hyphen (-) if no VCCV CC type is specified.
VCCV BFD	VCCV BFD type: · Fault Detection with BFD. BFD packets use IP/UDP encapsulation (with IP/UDP headers). · Fault Detection with Raw-BFD. BFD packets use PW-ACH encapsulation (without IP/UDP headers). This field displays a hyphen (-) if BFD is not used to verify PW connectivity.
Flow Label	This field is not supported in the current software version. Flow label capability: · Both—Flow label sending and receiving capabilities. · Send—Flow label sending capability. · Recv—Flow label receiving capability. This field displays a hyphen (-) if the flow label feature is disabled.
Tunnel Group ID	ID of the tunnel group for the PW.
Tunnel NHLFE IDs	NHLFE IDs of the public tunnels that carry the PW. If equal-cost tunnels are available, this field displays multiple tunnel NHLFE IDs. If no tunnel is available, this field displays None.

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display l2vpn interface

Use display l2vpn interface to display L2VPN information for Layer 3 interfaces bound to cross-connects.

Syntax

display l2vpn interface [ xconnect-group group-name | interface-type interface-number ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

xconnect-group group-name: Displays L2VPN information for Layer 3 interfaces bound to cross-connects in a cross-connect group. The group-name argument specifies the cross-connect group name, a case-sensitive string of 1 to 31 characters.

interface-type interface-number: Displays L2VPN information for the specified interface.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

Usage guidelines

If you do not specify any parameters, this command displays L2VPN information for all Layer 3 interfaces bound to cross-connects.

Examples

# Display brief L2VPN information for all Layer 3 interfaces bound to cross-connects.

<Sysname> display l2vpn interface

Total number of interfaces: 1, 1 up, 0 down

Interface Owner Link ID State Type

GE1/0/1 1 0 Up VPWS

# Display detailed L2VPN information for all Layer 3 interfaces bound to cross-connects.

<Sysname> display l2vpn interface verbose

Interface : GE1/0/1

Owner : vpws1

Link ID : 0x1

State : UP

Type : VPWS

Statistics : Enabled

Input Statistics:

Octets :0

Packets :0

Errors :0

Discards:0

Output Statistics:

Octets :0

Packets :0

Errors :0

Discards:0

Interface : GE1/0/2

Owner : vpws2

Link ID : 0x1

State : UP

Type : VPWS

Statistics : Enabled

Input Statistics:

Octets :0

Packets :0

Errors :0

Discards:0

Output Statistics:

Octets :0

Packets :0

Errors :0

Discards:0

# Display brief L2VPN information for all Layer 3 interfaces bound to cross-connects.

<Sysname> display l2vpn interface

Total number of interfaces: 1, 1 up, 0 down

Interface Owner Link ID State Type

Vlan10 1 0 Up VPWS

# Display detailed L2VPN information for all Layer 3 interfaces bound to cross-connects.

<Sysname> display l2vpn interface verbose

Interface : Vlan10

Owner : vpws1

Link ID : 0x1

State : UP

Type : VPWS

Interface : Vlan11

Owner : vpws2

Link ID : 0x1

State : UP

Type : VPWS

Statistics : Enabled

Input Statistics:

Octets :0

Packets :0

Errors :0

Discards:0

Output Statistics:

Octets :0

Packets :0

Errors :0

Discards:0

Table 11 Command output

Field	Description
Owner	Cross-connect group name.
Link ID	Link ID of the AC.
Type	L2VPN type. The value can only be VPWS for an MPLS L2VPN network.
Statistics	Packet statistics state on the Layer 3 interface: · Enabled. · Disabled.
Input Statistics	Incoming packet statistics on the Layer 3 interface: · Octets—Number of incoming octets. · Packets—Number of incoming packets. · Errors—Number of incoming error packets. · Discards—Number of discarded incoming packets.
Output Statistics	Outgoing packet statistics on the Layer 3 interface: · Octets—Number of outgoing octets. · Packets—Number of outgoing packets. · Errors—Number of outgoing error packets. · Discards—Number of discarded outgoing packets.

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display l2vpn ldp

Use display l2vpn ldp to display LDP PW label information.

Syntax

display l2vpn ldp [ peer ip-address [ pw-id pw-id ] | xconnect-group group-name ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

peer ip-address: Displays LDP PW label information advertised by a peer PE. The ip-address argument specifies the LSR ID of the peer PE. If you do not specify a peer PE, this command displays LDP PW label information advertised by all peer PEs.

pw-id pw-id: Displays LDP PW label information for a PW. The pw-id argument specifies the PW ID in the range of 1 to 4294967295. If you specify peer ip-address without this option, the command displays all LDP PW label information advertised by the peer PE.

xconnect-group group-name: Displays LDP PW label information for a cross-connect group. The group-name argument specifies the cross-connect group name, a case-sensitive string of 1 to 31 characters. If you do not specify a cross-connect group, this command displays LDP PW label information for all cross-connect groups.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

Examples

# Display brief information about all LDP PW labels.

<Sysname> display l2vpn ldp

Total number of LDP PWs: 5, 4 up, 1 down

Peer PW ID/VPLS ID In/Out Label State Owner

192.3.3.3 1001 775125/775126 Up vpws1

192.3.3.3 1003 775117/775122 Up vpws3

192.3.3.3 1004 775120/775120 Up vpws4

192.4.4.4 1000 775116/unknown Down vpws5

Table 12 Command output

Field	Description
PW ID/VPLS ID	This field displays the PW ID for FEC 128, and displays the VPLS ID for FEC 129. Only VPLS supports FEC 129.
Owner	Cross-connect group of the PW.

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# Display detailed information about all LDP PW labels.

<Sysname> display l2vpn ldp verbose

Peer: 192.2.2.2 PW ID: 1000

Xconnect-group: vpn1

Connection : ldp

PW State : Up

PW Status Communication: Notification method

PW Preferential Forwarding Status Bit: Process

PW ID FEC (Local/Remote):

PW Type : VLAN/VLAN

Group ID : 0/0

Label : 1151/1279

Control Word: Disabled/Disabled

VCCV CC Type: -/-

VCCV CV Type: -/-

Flow Label : Send/Recv

MTU : 1500/1500

PW Status : PW forwarding/PW forwarding

Table 13 Command output

Field	Description
Xconnect-group	Cross-connect group of the PW.
Connection	Cross-connect of the PW.
PW Status Communication	PW state communicate: · Notification method—Uses notifications to communicate PW states. · Label withdraw method—Assigns a PW label to the PW when the AC is up and withdraws the PW label when the AC goes down.
PW Preferential Forwarding Status Bit	PW state processing mode: · Process—Process the received PW states. · Ignore—Ignore the received PW states.
VCCV CC Type	VCCV CC type: · Control-Word—Control word. · Router-Alert—MPLS Router Alert Label. · TTL—TTL expiry (MPLS PW Label with TTL=1.) This field displays a hyphen (-) if no VCCV CC type is specified. For information about VCCV, see MPLS Configuration Guide.
VCCV CV Type	VCCV CV type: · LSP Ping—Uses MPLS LSP ping to verify PW connectivity. · BFD—Uses BFD to verify PW connectivity. BFD packets use IP/UDP encapsulation (with IP/UDP headers). · Raw-BFD—Uses BFD to verify PW connectivity. BFD packets use PW-ACH encapsulation (without IP/UDP headers). This field displays a hyphen (-) if VCCV is not performed on the PW.
Flow Label	This field is not supported in the current software version. Flow label capability: · Both—Flow label sending and receiving capabilities. · Send—Flow label sending capability. · Recv—Flow label receiving capability. This field displays a hyphen (-) if the flow label feature is disabled.
Bit Rate	This field is not supported in the current software version. CEM interface bit rate, in kbps. It varies by circuit type of CEM interfaces. · E1 in SAToP mode = 32. · T1 in SAToP mode = 24. · E1/T1 in CESoPSN mode = Number of time slots.
Payload	This field is not supported in the current software version. CEM interface payload size, in bytes. The value of this parameter is calculated by the formula: payload size in bytes = number of time slots × payload size in frames.
RTP Header	This field is not supported in the current software version. Whether the RTP header is enabled.
Timestamping	This field is not supported in the current software version. Timestamp transmission mode: · Differential. · Absolute.
Frequency	This field is not supported in the current software version. Time stamping frequency.

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display l2vpn pw

Use display l2vpn pw to display L2VPN PW information.

Syntax

display l2vpn pw [ xconnect-group group-name ] [ protocol { bgp | ldp | static } ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

xconnect-group group-name: Displays L2VPN PW information for a cross-connect group. The group-name argument specifies the cross-connect group name, a case-sensitive string of 1 to 31 characters. If you do not specify a group, this command displays L2VPN PW information for all cross-connect groups.

protocol: Displays L2VPN PW information established by a protocol. If you do not specify a protocol, this command displays L2VPN PW information established by all protocols.

bgp: Displays BGP PW information.

ldp: Displays LDP PW information.

static: Displays static PW information, including remote CCC connections.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

Usage guidelines

After you enable PW statistics, you can use the display l2vpn pw verbose command to display PW statistics.

Examples

# Display brief information about all L2VPN PWs.

<Sysname> display l2vpn pw

Flags: M - main, B - backup, E - ecmp, BY - bypass, H - hub link, S - spoke link

N - no split horizon, A - administration, ABY – ac-bypass

PBY – pw-bypass

Total number of PWs: 3

3 up, 0 blocked, 0 down, 0 defect, 0 idle, 0 duplicate

Xconnect-group Name: ldp

Peer PWID/RmtSite/SrvID In/Out Label Proto Flag Link ID State

192.3.3.3 500 1299/1299 LDP M 10000000 Up

192.3.3.2 600 1292/1291 LDP ABY 10000000 Up

Xconnect-group Name: vpnb

Peer PWID/RmtSite/SrvID In/Out Label Proto Flag Link ID State

192.3.3.3 2 1036/1163 BGP M 10000001 Up

Table 14 Command output

Field	Description
Flags	PW flag.
PWID/RmtSite/SrvID	This field displays the PW ID for a static or LDP PW and the remote site ID for a BGP PW.
Proto	Protocol that established the PW: LDP, Static, or BGP.
Flag	PW attribute: · M - Main—The PW is a primary PW. · B - Backup—The PW is a backup PW. · E - ECMP—The PW is an ECMP PW. · BY - Bypass—The PW is a bypass PW. · H - Hub link—The PW is the hub link in a hub-spoke VPLS network. · S - Spoke link—The PW is a spoke link in a hub-spoke VPLS network. · N - No-split-horizon—Split horizon forwarding is disabled. · A - Administration—The PW is an administration PW. This attribute is not supported in the current software version. · ABY - AC-bypass—The PW is an bypass PW for AC bypass. This attribute is not supported in the current software version. · PBY - PW-bypass—The PW is a bypass PW for PW bypass. This attribute is not supported in the current software version.
Link ID	Link ID of the PW.
State	PW state: · Up—The PW is available. · Down—The PW is not available. · Blocked—The PW is a backup PW. · Defect—BFD has detected a defect on the PW. · Idle—The incoming label of the PW is not available. · Dup—The incoming label of the static PW is used by a static LSP or static CRLSP.

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# Display detailed information about all PWs.

<Sysname> display l2vpn pw verbose

Xconnect-group Name: ldp

Connection Name: ldp

Peer: 192.3.3.3 PW ID: 500

Signaling Protocol : LDP

Link ID : 0x10000000 PW State : Up

In Label : 1299 Out Label: 1299

MTU : 1500

PW Attributes : Main

VCCV CC : -

VCCV BFD : -

Flow Label : Send

Tunnel Group ID : 0x800000160000000

Tunnel NHLFE IDs : 1026

Admin PW : Associated AC interface Loop0

Input statistics :

Octets : 10600

Packets : 100

Errors : 0

Discards : 0

Output statistics :

Octets : 12600

Packets : 100

Errors : 0

Discards : 0

Xconnect-group Name: vpnb

Connection of auto-discovery: Site 1

Peer: 192.3.3.3 Remote Site: 2

Signaling Protocol : BGP

Link ID : 0x10000001 PW State : Up

In Label : 1036 Out Label: 1163

MTU : 1500

PW Attributes : Main

VCCV CC : -

VCCV BFD : -

Flow Label : -

Tunnel Group ID : 0x800000160000000

Tunnel NHLFE IDs : 1026

Admin PW : -

Table 15 Command output

Field		Description
Xconnect-group Name		Cross-connect group name.
Connection Name		Cross-connect name, which is displayed for LDP and static PWs.
Peer		IP address of the peer PE of the PW.
Signaling Protocol		Protocol that established the PW: LDP, Static or BGP.
PW State		PW state: · Up—The PW is available. · Down—The PW is not available. · Blocked—The PW is a backup PW. · Defect—BFD has detected a defect on the PW. · Idle—The incoming label of the PW is not available. · Duplicate—The incoming label of the static PW is used by a static LSP or static CRLSP.
Wait to Restore Time		Wait time to switch traffic from the backup PW to the primary PW when the primary PW recovers, in seconds. If the switchover is disabled, this field displays Infinite. This field is available when both primary and backup PW exist, and is displayed only for the primary PW.
Remaining Time		Remaining wait time for traffic switchover, in seconds.
PW Attributes		PW attribute: · Main—Primary PW. · Backup—Backup PW. · ECMP—ECMP PW. · Bypass—Bypass PW. · Administration—Administration PW. This attribute is not supported in the current software version. · AC-bypass—Bypass PW for AC bypass. This attribute is not supported in the current software version. · PW-bypass—Bypass PW for PW bypass. This attribute is not supported in the current software version.
VCCV CC	VCCV CC type: · Control-Word—Control word. · Router-Alert—MPLS Router Alert Label. · TTL—TTL expiry (MPLS PW Label with TTL=1.) This field displays a hyphen (-) if no VCCV CC type is specified.
VCCV BFD	VCCV BFD type: · Fault Detection with BFD. BFD packets use IP/UDP encapsulation (with IP/UDP headers). · Fault Detection with Raw-BFD. BFD packets use PW-ACH encapsulation (without IP/UDP headers). This field displays a hyphen (-) if BFD is not used to verify PW connectivity.
Flow Label	This field is not supported in the current software version. Flow label capability: · Both—Flow label sending and receiving capabilities. · Send—Flow label sending capability. · Recv—Flow label receiving capability. This field displays a hyphen (-) if the flow label feature is disabled.
Tunnel Group ID		ID of the tunnel group for the PW.
Tunnel NHLFE IDs		NHLFE IDs of the public tunnels that carry the PW. If equal-cost tunnels are available, this field displays multiple tunnel NHLFE IDs. If no tunnel is available, this field displays None.
Admin PW		This field is not supported in the current software version. Administration PW to which the PW is bound. This field displays a hyphen (-) if the PW is not bound to an administration PW.
Connection of auto-discovery		The PW is a BGP PW.
Site		Local site ID.
Remote site		Remote site ID.
Down Reasons		Reason why the PW went down: · BFD session for PW down. · BGP RD was deleted. · BGP RD was empty. · Control word not match. · Encapsulation not match. · Label not allocated. · LDP interface parameter not match. · Local and remote LDP PWs have different AII. · Non-existent remote LDP PW—The remote end has deleted the LDP PW. · Local AC Down. · Local AC was non-existent—Local AC was not configured. · Local LDP PW VN defect—Local LDP PW had VN defects. · Local LDP PW was not sent mapping message—The local end did not send LDP mapping messages. · Local VSI Down. · MTU not match. · Remote AC Down. · Remote LDP PW VN defect—Remote LDP PW had VN defects. · PW down after created—The PW is in down state after being created. · Tunnel Down.
Input statistics		Incoming packet statistics for the PW: · Octets—Number of incoming octets. · Packets—Number of incoming packets. · Errors—Number of error packets. · Discards—Number of discarded packets.
Output statistics		Outgoing packet statistics for the PW: · Octets—Number of outgoing octets. · Packets—Number of outgoing packets. · Errors—Number of error packets. · Discards—Number of discarded packets.

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Related commands

statistics enable (cross-connect PW view)

display l2vpn pw state-machine

Use display l2vpn pw state-machine to display MPLS L2VPN PW state machine information.

Syntax

display l2vpn pw state-machine [ vsi vsi-name | xconnect-group group-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

vsi vsi-name: Specifies a VSI by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VSI, this command displays L2VPN PW state machine information for all VSIs.

xconnect-group group-name: Specifies a cross-connect group by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a group, this command displays L2VPN PW state machine information for all cross-connect groups.

Examples

# Display MPLS L2VPN PW state machine information.

<Sysname> display l2vpn pw state-machine

PW Group State:

Idle - Idle, N - Normal, UA - Unavailable, PA - Protecting administrative

PF - Protecting failure, WTR - Wait-to-Restore, DNR - Do-not-Revert

SWT - Switchover wait, SWTR - Switchover wait Restore

M - Manual switch, P - Protection PW failure, W - Working PW failure

L - Local, R - Remote

Total number of PWs: 2

Xconnect-group Name: ldp

Connection Name: ldp

PW Group Link ID : 0

Main PW : Peer: 192.3.3.3 PW ID: 500

Backup PW : -

Signaling Protocol : LDP

Main PW Defect State : No defect

Backup PW Defect State : -

Switch Flag : 0x01

Switch Result : None

Switch Reason : PW down

SWT Expiry Count : 0

SWTR Expiry Count : 0

Remote Event : None

Local Event : None

PW Group Old State : Idle

PW Group State : Normal

Xconnect-group Name: vpnb

Connection of auto-discovery: Site 1

PW Group Link ID : 1

Main PW : Peer: 192.3.3.3 Remote Site: 2

Backup PW : -

Signaling Protocol : BGP

Main PW Defect State : No defect

Backup PW Defect State : -

Switch Flag : 0x01

Switch Result : None

Switch Reason : PW down

SWT Expiry Count : 0

SWTR Expiry Count : 0

Remote Event : None

Local Event : None

PW Group Old State : Idle

PW Group State : Idle

Table 16 Command output

Field	Description
Connection Name	Cross-connect name. This field is displayed for LDP PWs and static PWs.
Connection of auto-discovery	BGP PW.
Site	Local site ID.
Peer	IP address of the peer PE of the PW.
Backup PW	If no backup PWs exist, this field displays a hyphen (-).
Signaling Protocol	Protocol that established the PW: LDP, Static, or BGP.
Main PW Defect State	Primary PW defect state: · No defect—The primary PW does not have defects. · Signal defect—The signaling protocol detects a defect on the primary PW. · VN defect—The virtual next hop (VN) detects a defect on the primary PW. · OAM defect—OAM detects a defect on the primary PW. · Admin PW defect—The administration PW detects a defect on the primary PW. This state is not supported in the current software version. · Remote defect—The remote end of the PW has defects.
Backup PW Defect State	Backup PW defect state. The options of this field are the same as those of the Main PW Defect State field. If no backup PWs exist, this field displays a hyphen (-).
Switch Flag	Primary/backup PW switchover flag: · Local manual switching—A manual primary/backup PW switchover is performed at the local end. · Signaling switching—A primary/backup PW switchover is triggered by the signaling protocol. · Remote manual switching—A manual primary/backup PW switchover is performed at the remote end.
Switch Result	Primary/backup PW switchover result: · None—Neither the primary nor the backup PW is used to forward traffic. · Main—The primary PW is used to forward traffic. · Backup—The backup PW is used to forward traffic.
Switch Reason	Reason for the primary/backup PW switchover: · Manual force switch—The l2vpn switchover command was executed. · Config changed—A PW was added or removed in the set of redundant PWs. · Fault dectected—BFD or VCCV detected a PW failure. · PW down—The PW went down. · PW up—The PW came up. · Receive notification message—A notification was received. · Restore manual force switch—Restored the PW state before the l2vpn switchover command was most recently executed. · None—No primary/backup PW switchover occurred.
SWT Expiry Count	Number of times that the switchover wait timer expires. This value is used to determine whether to re-initiate a request switchover. This counter is reset when a primary/backup PW switchover occurs.
SWTR Expiry Count	Number of times that the switchover wait restore timer. This value is used to determine whether to re-initiate a request switchover. This counter is reset when a primary/backup PW switchover occurs.
Remaining Wait Time	Remaining wait time for the request switchover acknowledgment, in seconds. This field is displayed after the switchover wait timer is started.
Remote Event	Event received from the remote state machine: · SFW—The primary PW has defects. · SFP—The backup PW has defects. · SFCW—The primary PW comes up. · SFCP—The backup PW comes up. · MS—Traffic is manually switched from the primary PW to the backup PW. · MR—Traffic is manaully switched from the backup PW to the primary PW. · None—No event is received.
Local Event	Event received from the local state machine: · SFW—The primary PW has defects. · SFP—The backup PW has defects. · SFCW—The primary PW comes up. · SFCP—The backup PW comes up. · MS—Traffic is manually switched from the primary PW to the backup PW. · MR—Traffic is manually switched from the backup PW to the primary PW. · WTREXP—The wait to restore timer expires. · WTR—The wait to restore timer is set to a non-zero value. · DNR—The switchover mode is set to non-revertive, which indicates that traffic is not switched from the backup PW to the primary PW after the primary PW recovers. · SWTEXP—The switchover wait timer expires. · None—No event is received.
PW Group Old State	PW state before the primary/backup PW switchover: · Idle—Neither the primary nor the backup PW is available. · Normal—Both the primary and backup PWs are available. The primary PW is up. · UA:P:L—The local end of the backup PW has defects. The primary PW is up. · UA:P:R—The remote end of the backup PW has defects. The primary PW is up. · PF:W:L—The local end of the primary PW has defects. The backup PW is up. · PF:W:R—The remote end of the primary PW has defects. The backup PW is up. · PA:M:L—Both the primary and backup PWs are available. A switchover command is executed at the local end to switch traffic from the primary PW to the backup PW. · PA:M:R—Both the primary and backup PWs are available. A switchover command is executed at the remote end to switch traffic from the primary PW to the backup PW. · WTR—Waiting for the expiration of the wait to restore timer. · DNR—Traffic is not switched from the backup PW to the primary PW after the primary PW recovers. · SWT—Waiting for acknowledgment for the primary-to-backup switchover request. · SWTR—Waiting for acknowledgment for the backup-to-primary switchover request.
PW Group State	PW state after the primary/backup PW switchover. Options of this field are the same as those of the PW Group Old State field.

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display l2vpn pw-class

Use display l2vpn pw-class to display PW class information.

Syntax

display l2vpn pw-class [ class-name ] [ verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

class-name: Displays information about the PW class specified by its name, a case-sensitive string of 1 to 19 characters. If you do not specify a PW class, this command displays information about all PW classes.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief PW class information.

Examples

# Display information about all PW classes.

<Sysname> display l2vpn pw-class

Total number of PW classes: 2

PW Class Name PW/SRv6 PW Type Control Word VCCV CC VCCV BFD

pw1 Ethernet/Ethernet Enabled Router-Alert BFD

pw2 VLAN/Ethernet Disabled Router-Alert BFD

Table 17 Command output

Field		Description
PW Type	Data encapsulation type for the MPLS PW. Optional data encapsulation types include Ethernet, TDM-CESoPSN-Basic, DM-SAToP-E1, and VLAN.
SRv6 PW Type	Data encapsulation type for the MPLS PW or SRv6 PW. Optional data encapsulation types for an SRv6 PW include Ethernet and VLAN. This field displays a hyphen (-) if no data encapsulation type is specified for the SRv6 PW.
VCCV CC	VCCV CC type: · Control-Word—Control word. · Router-Alert—MPLS Router Alert Label. · TTL—TTL expiry (MPLS PW Label with TTL=1.) This field displays a hyphen (-) if no VCCV CC type is specified.
VCCV BFD	VCCV BFD type: · BFD—BFD packets use IP/UDP encapsulation (with IP/UDP headers). · Raw-BFD—BFD packets use PW-ACH encapsulation (without IP/UDP headers). This field displays a hyphen (-) if BFD is not used to verify PW connectivity.

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# Display detailed information about all PW classes.

<Sysname> display l2vpn pw-class verbose

PW Class Name : pw1

PW Type : Ethernet

SRv6 PW Type: -

Control Word: Enabled

VCCV CC : Router-Alert

VCCV BFD : BFD

Sequencing : -

Flow Label : -

PW Class Name : pw2

PW Type : VLAN

SRv6 PW Type: -

Control Word: Disabled

VCCV CC : Router-Alert

VCCV BFD : BFD

Sequencing : -

Flow Label : -

Table 18 Command output

Field	Description
PW Type	Data encapsulation type for the MPLS PW: Ethernet, VLAN, TDM-CESoPSN-Basic, or TDM-SAToP-E1.
SRv6 PW Type	This field is not supported in the current software version. Data encapsulation type for the SRv6 PW. Options include Ethernet and VLAN. This field displays a hyphen (-) if no data encapsulation type is specified for the SRv6 PW.
Control Word	Whether control word is enabled.
VCCV CC	VCCV CC type: · Control-Word—Control word. · Router-Alert—MPLS Router Alert Label. · TTL—TTL expiry (MPLS PW Label with TTL=1.) This field displays a hyphen (-) if no VCCV CC type is specified.
VCCV BFD	VCCV BFD type: · BFD—BFD packets use IP/UDP encapsulation (with IP/UDP headers). · Raw-BFD—BFD packets use PW-ACH encapsulation (without IP/UDP headers). This field displays a hyphen (-) if BFD is not used to verify PW connectivity.
Sequencing	This field is not supported in the current software version. Packet sequencing on the PW. The value is Both, which means sequencing is enabled for both incoming and outgoing packets on a PW. A hyphen (-) in this field indicates that packet sequencing is disabled on the PW.
Flow Label	This field is not supported in the current software version. Flow label capability: · Both—Flow label sending and receiving capabilities. · Send—Flow label sending capability. · Recv—Flow label receiving capability. This field displays a hyphen (-) if the flow label feature is disabled.

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Related commands

pw-class

display l2vpn xconnect-group

Use display l2vpn xconnect-group to display cross-connect group information.

Syntax

display l2vpn xconnect-group [ name group-name [ connection connection-name ] | vpws ] [ count | verbose ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

name group-name: Displays information about a cross-connect group. The group-name argument specifies the cross-connect group name, a case-sensitive sting of 1 to 31 characters. If you do not specify a group, this command displays information about all cross-connect groups.

connection connection-name: Displays information about a cross-connect. The connection-name argument specifies the cross-connect name, a case-sensitive string of 1 to 20 characters excluding hyphens (-). If you do not specify a cross-connect, this command displays information about all cross-connects.

vpws: Displays information about cross-connect groups in the MPLS L2VPN network. If you do not specify this keyword, the command displays information about all cross-connect groups.

count: Displays the number of cross-connect groups.

verbose: Displays detailed information. If you do not specify this keyword, the command displays brief information.

Usage guidelines

If you do not specify the vpws keyword, this command displays information about all cross-connect groups.

Examples

# Display brief information about all cross-connect groups.

<Sysname> display l2vpn xconnect-group

Status Codes: UP - Up, DN - Down, DF - Defect, BD - Blocked, AD - Admin Down,

DL - Idle, DP - Duplicate

Total number of Xconnect-group: 1

Total number of cross-connections: 1, 1 up, 0 down, 0 admin down

Xconnect-group Connection ST

Segment1 ST Segment2 ST

--------------------------------------------------------------------------------

1111 yyy UP

Static 192.2.2.2 5 UP Static 192.3.3.3 4 UP --------------------------------------------------------------------------------

# Display cross-connect group statistics.

<Sysname> display l2vpn xconnect-group count

Total number of cross-connections: 1, 1 up, 0 down, 0 admin down

Table 19 Command output

Field	Description
Total number of Xconnect-group	Total number of cross-connect groups.
Xconnect-group Name	Cross-connect group name.
ST	Cross-connect state: · UP—The cross-connect is up. · DN—The cross-connect is down. · AD—The cross-connect has been shut down by using the shutdown command.
Segment1 / Segment2	· AC information—Layer 3 interface name. · PW information—PW establishment mode, IP address of the remote PE, and PW ID.
ST	When this field displays the AC state, options include the following: · UP—The AC is up. · DN—The AC is down. · When this field displays the PW state, options include the following: · UP—The PW is up. · DN—The PW is down. · DF—BFD has detected faults on the PW. · BD—The PW is a backup PW and does not forward traffic. · DL—The incoming label of the PW is unavailable. · DP—The incoming label of the PW is the same as the incoming label of a static LSP or static CRLSP.

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# Display detailed information about all cross-connect groups.

<Sysname> display l2vpn xconnect-group verbose

Xconnect-group Name: 1

Connection Name : 1

Connection ID : 0

State : Up

MTU : 1500

Diffserv Mode : -

LDP PWs:

Peer PW ID Link ID State Flag

1.1.1.1 20001 0x10000000 Down Main

Create time: 2018-10-12 09:06:59

Last time status changed: 2018-10-12 09:06:59

Last time PW went down: 2018-10-12 09:06:59

3.3.3.3 30001 0 Up PW-bypass

Create time: 2018-10-12 09:04:27

Last time status changed: 2018-10-12 09:04:27

Last time PW went down: 2018-10-12 09:04:27

3.3.3.3 10001 0x10000001 Blocked AC-bypass

Create time: 2018-10-12 09:04:27

Last time status changed: 2018-10-12 09:04:27

Last time PW went down: 2018-10-12 09:04:27

ACs:

AC Link ID State

GE1/0/1 0x0 Up

Statistics: Disabled

Table 20 Command output

Field	Description
Xconnect-group Name	Cross-connect group name.
Description	Description for the cross-connect group. If no description is configured, this field is not displayed.
Connection Name	Cross-connect name.
Connection of auto-discovery	Auto-discovery cross-connect.
Site	Local site ID.
Remote site	Remote site ID.
Connection ID	Cross-connect ID.
State	Cross-connect group state: Up, Down, or Admin down. Admin down indicates that the cross-connect group has been shut down by using the shutdown command.
Create time	Time when the PW was established.
Last time status changed	Time when the PW state most recently changed.
Last time PW went down	Time when the PW most recently went down.
Statistics	AC or PW statistics state: Enabled or Disabled. If AC or PW statistics is enabled, the following information is displayed: · Octets—Numbers of incoming and outgoing bytes. · Packets—Numbers of incoming and outgoing packets. · Errors—Numbers of incoming and outgoing error packets. · Discards—Numbers of discarded incoming and outgoing packets.
PW Redundancy Mode	PW redundancy operation mode: · Slave—Master/slave mode and the local PE operates as the slave node. · Master—Master/slave mode and the local PE operates as the master node. · Independent—Independent mode.
Diffserv Mode	DiffServ mode. Options include the following: · ingress—MPLS DiffServ mode for the inbound direction. · egress—MPLS DiffServ mode for the outbound direction. · pipe—Pipe mode. · short-pipe—Short-pipe mode. · uniform—Uniform mode · trust—Priority trust mode ¡ inner-dot1p—Trusts the inner 802.1p priority in packets. ¡ dscp—Trusts the DSCP in packets. af1, af2, af3, af4, be, cs6, cs7, or ef represents the MPLS EXP value. If no DiffServ mode is configured, this field displays a hyphen (-).
Interworking IPv4	This field is not supported in the current software version. IPv4 interworking state: Enabled or Disabled.
State	PW state: Up, Down, Blocked, or Defect.
Flag	PW type: · Main—Primary PW. · BackUp—Backup PW. · Bypass—Bypass PW. · AC-bypass—Bypass PW for AC bypass. This type is not supported in the current software version. · PW-bypass—Bypass PW for PW bypass. This type is not supported in the current software version.
Statistics	Whether AC or PW statistics collection is enabled: · Enabled. · Disabled. With statistics collection enabled, the device can collect statistics about octets, packets, errors, and discards.
AC	AC type: Layer 3 interface.

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Related commands

xconnect-group

l2vpn enable

Use l2vpn enable to enable L2VPN.

Use undo l2vpn enable to disable L2VPN.

Syntax

l2vpn enable

undo l2vpn enable

Default

L2VPN is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

You must enable L2VPN before configuring other L2VPN settings.

Examples

# Enable L2VPN.

<Sysname> system-view

[Sysname] l2vpn enable

l2vpn log enable

Use l2vpn log enable to enable L2VPN logging.

Use undo l2vpn log enable to disable L2VPN logging.

Syntax

l2vpn log enable

undo l2vpn log enable

Default

L2VPN logging is enabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

This feature enables L2VPN to generate logs for running state changes. The generated logs are sent to the information center. The information center processes the logs according to user-defined output rules (whether to output logs and where to output).

For more information about the information center, see information center configuration in System Management Configuration Guide.

Examples

# Enable L2VPN logging.

<Sysname> system-view

[Sysname] l2vpn log enable

l2vpn statistics interval

Use l2vpn statistics interval to set the L2VPN traffic statistics collection interval.

Use undo l2vpn statistics interval to restore the default.

Syntax

l2vpn statistics interval interval

undo l2vpn statistics interval

Default

The L2VPN traffic statistics collection interval is 15 minutes.

Views

System view

Predefined user roles

network-admin

Parameters

interval: Specifies the L2VPN traffic statistics collection interval in the range of 5 to 65535 seconds.

Examples

# Set the L2VPN traffic statistics collection interval to 30 seconds.

<Sysname> system-view

[Sysname] l2vpn statistics interval 30

l2vpn switchover

Use l2vpn switchover to switch traffic from a PW to its backup or primary PW.

Syntax

l2vpn switchover peer ip-address pw-id pw-id

Views

User view

Predefined user roles

network-admin

Parameters

peer ip-address: Specifies the LSR ID of the peer PE.

pw-id pw-id: Specifies a PW by its ID in the range of 1 to 4294967295.

Usage guidelines

The specified LSR ID and PW ID uniquely identify a PW.

If a PW has a backup PW or primary PW, this command switches traffic from the PW to the backup or primary PW. If the PW does not have a backup or primary PW, this command does not perform the switchover.

Examples

# Switch traffic from PW 100 destined for 3.3.3.3 to its backup PW.

<Sysname> l2vpn switchover peer 3.3.3.3 pw-id 100

mtu

Use mtu to set an MTU for PWs established on a cross-connect or auto-discovery cross-connect.

Use undo mtu to restore the default.

Syntax

mtu size

undo mtu

Default

A PW has an MTU of 1500 bytes.

Views

Cross-connect view

Auto-discovery cross-connect group view

Predefined user roles

network-admin

Parameters

size: Specifies an MTU value. The value range for this argument is 300 to 65535.

Usage guidelines

The specified MTU applies to all PWs established in the cross-connect view or the auto-discovery cross-connect group view.

The MTU specifies the maximum packet length, including the control word, PW label, and network layer packet.

For an LDP PW to come up, the PEs at the two ends of the PW must have the same MTU.

Examples

# Set the MTU to 1400 bytes for cross-connect ac2pw in cross-connect group vpn1.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1] connection ac2pw

[Sysname-xcg-vpn1-ac2pw] mtu 1400

# Set the MTU to 1400 bytes for the auto-discovery cross-connect in cross-connect group bbb.

<Sysname> system-view

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] auto-discovery bgp

[Sysname-xcg-bbb-auto] mtu 1400

Related commands

display l2vpn xconnect-group

peer

Use peer to configure a PW for a cross-connect and enter cross-connect PW view, or enter the view of an existing cross-connect PW.

Use undo peer to delete a PW for a cross-connect.

Syntax

peer ip-address pw-id pw-id [ ignore-standby-state | in-label label-value out-label label-value ] [ pw-class class-name | tunnel-policy tunnel-policy-name ] *

undo peer ip-address pw-id pw-id

Default

No PWs exist for a cross-connect.

Views

Cross-connect view

Predefined user roles

network-admin

Parameters

ip-address: Specifies the LSR ID of the peer PE.

pw-id pw-id: Specifies a PW ID for the PW, in the range of 1 to 4294967295.

ignore-standby-state: Ignores the PW active/standby status bit received from the remote PE. If you do not specify this keyword, the local PE does not ignore the PW active/standby status bit received from the remote PE. This keyword is applicable only to LDP PWs.

in-label label-value: Specifies the incoming label of the PW. The value range for the label-value argument is 16 to 1023.

out-label label-value: Specifies the outgoing label of the PW, in the range of 16 to 1048575.

pw-class class-name: Specifies a PW class by its name, a case-sensitive string of 1 to 19 characters. You can specify a PW class to configure the PW data encapsulation type and control word. If you do not specify a PW class, the PW data encapsulation type is determined by the interface type. The control word feature is not supported for PW data encapsulation types that do not require using control word.

tunnel-policy tunnel-policy-name: Specifies a tunnel policy by its name, a case-sensitive string of 1 to 19 characters. If you do not specify a tunnel policy, the default tunnel policy is used.

Usage guidelines

A PE uses the PW Preferential Forwarding Status bit in LDP messages to advertise the local PWs' active/standby states. When the bit is set, it indicates that the local PW is in standby state. When the bit is cleared, it indicates that the local PW is in active state.

In independent mode, a PE considers the status bits received from the remote PEs when it selects the the forwarding PW among the set of redundant PWs. If you specify the ignore-standby-state keyword, the PE ignores the status bits received from the remote PEs and selects the forwarding PW using its own local rule.

In master/slave mode, a slave PE selects the forwarding PW among the set of redundant PWs based on the status bit received from the remote PEs. If you specify the ignore-standby-state keyword, the PE ignores the status bit received from the remote PEs and uses the primary PW to forward packets as long as the primary PW is up.

To create a static PW, you must specify the incoming and outgoing labels. To enter the view of an existing static PW, you do not need to specify the incoming and outgoing labels.

If you do not specify the incoming and outgoing labels when you create a new PW, LDP is used to create the PW.

The PW ID for a PW must be the same on the PEs at the ends of the PW.

On a PE, the LSR ID of the peer PE and the PW ID uniquely identify a PW. The peer LSR ID and PW ID combination of a PW must be unique among all VPLS PWs and cross-connect PWs.

Examples

# Configure an LDP PW destined for 4.4.4.4 for cross-connect pw2pw in cross-connect group vpn1 and enter cross-connect PW view. The PW ID is 200.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1] connection pw2pw

[Sysname-xcg-vpn1-pw2pw] peer 4.4.4.4 pw-id 200

[Sysname-xcg-vpn1-pw2pw-4.4.4.4-200]

# Configure a static PW destined for 5.5.5.5 for cross-connect pw2pw in cross-connect group vpn1 and enter cross-connect PW view. The static PW has an ID of 200, an incoming label of 100, and an outgoing label of 200.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1] connection pw2pw

[Sysname-xcg-vpn1-pw2pw] peer 5.5.5.5 pw-id 200 in-label 100 out-label 200

[Sysname-xcg-vpn1-pw2pw-5.5.5.5-200]

Related commands

display l2vpn ldp

display l2vpn pw

pw-class

tunnel-policy

peer signaling

Use peer signaling to enable BGP to exchange label block information with the specified peer or peer group.

Use undo peer signaling to disable BGP to exchange label block information with the specified peer or peer group.

Syntax

peer { group-name | ip-address [ mask-length ] } signaling [ non-standard ]

undo peer { group-name | ip-address [ mask-length ] } signaling

Default

BGP can exchange label block information with an L2VPN peer or peer group through RFC 4761 MP_REACH_NLRI.

Views

BGP L2VPN address family view

Predefined user roles

network-admin

Parameters

group-name: Specifies a peer group by its name, a case-sensitive string of 1 to 47 characters. The specified peer group must have been created.

ip-address: Specifies a peer by its IP address. The specified peer must have been created.

mask-length: Specifies a mask length in the range of 0 to 32. You can use the ip-address and mask-length arguments together to specify a subnet. If you specify a subnet, this command enables BGP to exchange label block information with all dynamic peers in the subnet.

non-standard: Uses draft-kompella-ppvpn-l2vpn-03 MP_REACH_NLRI to exchange label block information. If you do not specify this keyword, RFC 4761 MP_REACH_NLRI is used to exchange label block information.

Usage guidelines

L2VPN uses MP-BGP to exchange label blocks when creating a BGP PW.

To enable BGP to exchange label blocks with the specified peers through RFC 4761 MP_REACH_NLRI, you can also use the peer enable command in BGP L2VPN address family view. To disable the capability, use the undo peer signaling command.

Examples

# Enable BGP to exchange label block information with the peer 3.3.3.9 through draft-kompella-ppvpn-l2vpn-03 MP_REACH_NLRI.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address-family l2vpn

[Sysname-bgp-default-l2vpn] peer 3.3.3.9 signaling non-standard

Related commands

display bgp l2vpn signaling

policy vpn-target

Use policy vpn-target to enable route target-based filtering of incoming BGP L2VPN information.

Use undo policy vpn-target to disable route target-based filtering of incoming BGP L2VPN information.

Syntax

policy vpn-target

undo policy vpn-target

Default

Route target-based filtering of incoming BGP L2VPN information is enabled.

Views

BGP L2VPN address family view

Predefined user roles

network-admin

Usage guidelines

If route target-based filtering is enabled, L2VPN accepts only the incoming BGP L2VPN information whose export route target attribute matches the local import route target attribute. If route target-based filtering is disabled, L2VPN accepts all incoming BGP L2VPN information.

To establish a BGP PW between two MP-IBGP peers that use a route reflector, you must disable route target-based filtering of incoming BGP L2VPN information on the route reflector.

Examples

# Disable route target-based filtering of incoming BGP L2VPN information.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address-family l2vpn

[Sysname-bgp-default-l2vpn] undo policy vpn-target

protection dual-receive

Use protection dual-receive to enable the dual receive feature for PW redundancy. After the dual receive feature is enabled, both the primary and backup PWs can receive packets, but only the primary PW sends packets.

Use undo protection dual-receive to restore the default.

Syntax

protection dual-receive

undo protection dual-receive

Default

The dual receive feature is disabled. When the primary PW is normal, the backup PW does not send or receive packets.

Views

Cross-connect view

Predefined user roles

network-admin

Examples

# Enable the dual receive feature for cross-connect ac2pw in cross-connect group vpn1.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1] connection ac2pw

[Sysname-xcg-vpn1-ac2pw] protection dual-receive

pw-class (auto-discovery cross-connect group view)

Use pw-class to specify a PW class for an auto-discovery cross-connect group.

Use undo pw-class to restore the default.

Syntax

pw-class class-name

undo pw-class

Default

No PW class is specified.

Views

Auto-discovery cross-connect group view

Predefined user roles

network-admin

Parameters

class-name: Specifies a PW class by its name, a case-sensitive string of 1 to 19 characters.

Usage guidelines

The specified PW class will be used to establish all PWs in the auto-discovery cross-connect group.

Examples

# Specify a PW class named pw100 for auto-discovery cross-connect group bbb.

<Sysname> system-view

[Sysname] pw-class pw100

[Sysname-pw-pw100] quit

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] auto-discovery bgp

[Sysname-xcg-bbb-auto] pw-class pw100

Related commands

control-word enable

display l2vpn pw-class

pw-class

pw-type

pw-class (system view)

Use pw-class to create a PW class and enter its view, or enter the view of an existing PW class.

Use undo pw-class to delete a PW class.

Syntax

pw-class class-name

undo pw-class class-name

Default

No PW classes exist.

Views

System view

Predefined user roles

network-admin

Parameters

class-name: Specifies a name for the PW class, a case-sensitive string of 1 to 19 characters.

Usage guidelines

In PW class view, you can configure PW attributes such as the PW data encapsulation type and whether to enable control word. You can configure PWs to use the same PW class to simplify PW attribute configuration.

Examples

# Create a PW class named pw100 and enter PW view.

<Sysname> system-view

[Sysname] pw-class pw100

[Sysname-pw-pw100]

Related commands

control-word enable

display l2vpn pw-class

pw-type

pw-redundancy

Use pw-redundancy to specify a PW redundancy operation mode.

Use undo pw-redundancy to restore the default.

Syntax

pw-redundancy { independent | master }

undo pw-redundancy

Default

The PW redundancy operation mode is master/slave and the local PE operates as the slave node.

Views

Cross-connect view

Predefined user roles

network-admin

Parameters

independent: Specifies the independent PW redundancy operation mode.

master: Specifies the master/slave PW redundancy operation mode and uses the local PE as the master node.

Usage guidelines

This command is applicable only to LDP PWs.

LDP PWs support the independent and master/slave PW redundancy operation modes.

· Independent mode—The two PEs of a PW use LDP to advertise their respective PW active/standby state to each other. A PW can forward traffic only when it is up and active at both ends of the PW. In this mode, make sure both PEs of a PW use the independent PW redundancy operation mode.

· Master/slave mode—One PE of a PW operates as the master node and the other PE operates as the slave node. The master PE determines the PW active/standby state and then uses LDP to advertise the PW state to the slave PE. The slave PE uses the same PW state as the master PE based on the information received from the master PE. In this way, the master and slave PEs for the set of redundant PWs can use the same active PW to forward user packets.

A slave node does not advertise the PW active/standby state to the master node, and the master node ignores the PW active/standby state received from the slave nodes.

Examples

# In cross-connect view of cross-connect pw2pw in cross-connect group vpn1, specify the master/slave PW redundancy operation mode and use the local PE as the master node.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1] connection pw2pw

[Sysname-xcg-vpn1-pw2pw] pw-redundancy master

Related commands

backup-peer

display l2vpn ldp

display l2vpn pw

peer

pw-type

Use pw-type to specify a PW data encapsulation type for a PW class.

Use undo pw-type to restore the default.

Syntax

pw-type { ethernet | vlan }

undo pw-type

Default

The PW data encapsulation type is VLAN.

Views

PW class view

Predefined user roles

network-admin

Parameters

ethernet: Specifies the PW data encapsulation type as Ethernet.

vlan: Specifies the PW data encapsulation type as VLAN.

Usage guidelines

When the PW data encapsulation type is Ethernet, P-tag is not transferred on a PW.

· For a packet from a CE:

¡ If the packet contains a P-tag, the PE removes the P-tag, and adds a PW label and an outer tag into the packet before forwarding it.

¡ If the packet contains no P-tag, the PE directly adds a PW label and an outer tag into the packet before forwarding it.

· For a packet to a CE:

¡ If the access mode is configured as VLAN by using the ac interface command, the PE adds a P-tag into the packet before sending it to the CE.

¡ If the access mode is configured as Ethernet by using the ac interface command, the PE directly sends the packet to the CE.

You cannot rewrite or remove existing tags.

When the PW data encapsulation type is VLAN, packets transmitted over a PW must carry a P-tag.

· For a packet from a CE:

¡ If the peer PE does not require the ingress to rewrite the P-tag, the PE keeps the P-tag unchanged for the packet, and then encapsulates the packet. If the packet contains no P-tag, the PE adds a null label (the label value is 0) into the packet, and then encapsulates the packet.

¡ If the peer PE requires the ingress to rewrite the P-tag, the PE changes the P-tag to the expected VLAN tag (the tag value might be 0), and then adds a PW label and an outer tag into the packet. If the packet contains no P-tag, the PE adds a VLAN tag expected by the peer PE (the tag value might be 0), and then adds a PW label and an outer tag into the packet.

· For a packet to a CE:

¡ If the access mode is configured as VLAN by using the ac interface command, the PE rewrites or retains the P-tag before forwarding the packet.

¡ If the access mode is configured as Ethernet by using the ac interface command, the PE removes the P-tag before forwarding the packet.

Examples

# Configure the PW data encapsulation type as Ethernet.

<Sysname> system-view

[Sysname] pw-class pw100

[Sysname-pw-pw100] pw-type ethernet

Related commands

ac-interface

display l2vpn pw-class

reset l2vpn statistics ac

Use reset l2vpn statistics ac to clear packet statistics for ACs.

Syntax

reset l2vpn statistics ac [ interface interface-type interface-number ]

Views

User view

Predefined user roles

network-admin

Parameters

interface interface-type interface-number: Specifies a Layer 3 interfaceby its type and number.

Usage guidelines

If you do not specify any parameters, this command clears packet statistics for all ACs.

Examples

# Clear packet statistics on Layer 3 interface GigabitEthernet 1/0/1.

<Sysname> reset l2vpn statistics ac interface gigabitethernet 1/0/1

Related commands

ac statistics enable

display l2vpn interface verbose

reset l2vpn statistics pw

Use reset l2vpn statistics pw to clear packet statistics for PWs.

Syntax

reset l2vpn statistics pw [ xconnect-group group-name [ connection connection-name ] ]

Views

User view

Predefined user roles

network-admin

Parameters

xconnect-group group-name: Specifies a cross-connect group by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a cross-connect group, this command clears packet statistics for all PWs.

connection connection-name: Specifies a cross-connect by its name, a case-sensitive string of 1 to 20 characters. If you do not specify a cross-connect, this command clears packet statistics for all cross-connects in a cross-connect group.

Usage guidelines

If a PW has a backup PW, this command clears packet statistics for both the PW and its backup PW.

Examples

# Clear packet statistics for all PWs.

<Sysname> reset l2vpn statistics pw

Related commands

statistics enable

revertive

Use revertive to specify the switchover mode and set the switchover wait time.

Use undo revertive to restore the default.

Syntax

revertive { wtr wtr-time | never }

undo revertive { wtr | never }

Default

The switchover mode is revertive and the switchover wait time is 0 seconds. When the primary PW recovers, traffic is immediately switched from the backup PW to the primary PW.

Views

Cross-connect view

Predefined user roles

network-admin

Parameters

wtr wtr-time: Specifies the switchover mode as revertive and specifies the wait time in the range of 0 to 3600 seconds. When the primary PW recovers, the PE waits for the specified time before switching traffic from the backup PW to the primary PW.

never: Specifies the switchover mode as non-revertive. After the primary PW recovers, traffic is not switched from the backup PW to the primary PW.

Examples

# Specify the revertive mode and set the switchover wait time to 120 seconds for cross-connect ac2pw in cross-connect group vpn1.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1] connection ac2pw

[Sysname-xcg-vpn1-ac2pw] revertive wtr 120

Related commands

display l2vpn pw

route-distinguisher

Use route-distinguisher to configure a route distinguisher (RD) for a BGP cross-connect group.

Use undo route-distinguisher to restore the default.

Syntax

route-distinguisher route-distinguisher

undo route-distinguisher

Default

No RD is configured for a BGP cross-connect group.

Views

Auto-discovery cross-connect group view

Predefined user roles

network-admin

Parameters

route-distinguisher: Specifies an RD, a string of 3 to 21 characters. An RD can be in one of the following formats:

· 16-bit AS number:32-bit user-defined number. For example, 101:3.

· 32-bit IP address:16-bit user-defined number. For example, 192.168.122.15:1.

· 32-bit AS number:16-bit user-defined number, where the AS number must be equal to or greater than 65536. For example, 65536:1.

Usage guidelines

MPLS L2VPN uses RDs to differentiate the sites with the same site ID but in different VPNs.

BGP adds the configured RD before the site ID. The RD and the site ID uniquely identify a VPN site.

You cannot configure the same RD for different BGP cross-connect groups.

To modify an RD, execute the undo route-distinguisher command to remove the RD, and then execute the route-distinguisher command.

Examples

# Configure the RD 22:2 for BGP cross-connect group bbb.

<Sysname> system-view

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] auto-discovery bgp

[Sysname-xcg-bbb-auto] route-distinguisher 22:2

rr-filter

Use rr-filter to create a route reflector (RR) reflection policy.

Use undo rr-filter to restore the default.

Syntax

rr-filter { ext-comm-list-name | ext-comm-list-number }

undo rr-filter

Default

An RR does not filter reflected L2VPN information.

Views

BGP L2VPN address family view

Predefined user roles

network-admin

Parameters

ext-comm-list-name: Specifies an extended community list name, a case-sensitive string of 1 to 63 characters. The name cannot contain only digits.

ext-comm-list-number: Specifies an extended community list number in the range of 1 to 65535.

Usage guidelines

After this command is executed, only the L2VPN information that is permitted by the specified extended community list is reflected.

By configuring different RR reflection policies on RRs in a cluster, you can implement load balancing among the RRs.

For more information about extended community lists, see Layer 3—IP Routing Configuration Guide.

Examples

# Configure the RR to reflect only the BGP L2VPN information that is permitted by extended community list 10.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address-family l2vpn

[Sysname-bgp-default-l2vpn] rr-filter 10

Related commands

ip extcommunity-list (Layer 3—IP Routing Command Reference)

shutdown

Use shutdown to disable a cross-connect group.

Use undo shutdown to enable a cross-connect group.

Syntax

shutdown

undo shutdown

Default

A cross-connect group is enabled.

Views

Cross-connect group view

Predefined user roles

network-admin

Usage guidelines

After you disable a cross-connect group, all cross-connects in the group cannot provide L2VPN services.

Use the shutdown command when you want to temporarily disable L2VPN. When a cross-connect group is disabled, you can still configure the cross-connect group. After the configuration, use the undo shutdown command to enable the cross-connect group. The cross-connect group will provide L2VPN services using the new settings.

Examples

# Disable cross-connect group vpn2.

<Sysname> system-view

[Sysname] xconnect-group vpn2

[Sysname-xcg-vpn2] shutdown

Related commands

display l2vpn xconnect-group

site

Use site to create a local site and enter its view, or enter the view of an existing local site.

Use undo site to delete a local site.

Syntax

site site-id [ range range-value ] [ default-offset default-offset ]

undo site site-id

Default

No sites exist.

Views

Auto-discovery cross-connect group view

Predefined user roles

network-admin

Parameters

site-id: Specifies a local site ID in the range of 0 to 256.

range range-value: Specifies the maximum number of sites in a VPN, in the range of 2 to 257. The default value is 10.

default-offset default-offset: Specifies the start site ID, 0 or 1. The default value is 0.

Usage guidelines

The range range-value and default-offset default-offset options determine the label block of the site.

· If you execute the site command with the range-value of range1, a label block with LR of range1 and LO of default-offset is assigned to the site.

· If you execute another site command with range-value of range2 (range2 is larger than range1), a second label block with LR of range2 to range1 and LO being range1 + default-offset is assigned to the site.

For example, if you execute the following commands, three label blocks LB1/0/10, LB2/10/12, and LB3/22/14 are assigned to site 1. LB1, LB2, and LB3 are automatically selected.

site 1 range 10 default-offset 0

site 1 range 22

site 1 range 36

You can create multiple local sites for a cross-connect group.

You can use the site command to increase the range value for an existing site. You cannot decrease the range value for an existing site with the site command. To decrease the range value, execute the undo site command to delete the site and then execute the site command.

Select a large range value to reduce future modifications for VPN expansion.

You cannot modify the default-offset for a site with the site command. To modify it, execute the undo site command to delete the site and then execute the site command.

Examples

# Create site 1, configure the VPN to contain a maximum of 30 sites, set the start site ID to 0 for cross-connect group bbb, and enter site view.

<Sysname> system-view

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] auto-discovery bgp

[Sysname-xcg-bbb-auto] site 1 range 30 default-offset 0

[Sysname-xcg-bbb-auto-1]

Related commands

display l2vpn pw

display l2vpn xconnect-group

snmp-agent trap enable l2vpn

Use snmp-agent trap enable l2vpn to enable SNMP notifications for L2VPN PW.

Use undo snmp-agent trap enable l2vpn to disable SNMP notifications for L2VPN PW.

Syntax

snmp-agent trap enable l2vpn [ ccc-up-down | pw-delete | pw-switch | pw-up-down ] *

undo snmp-agent trap enable l2vpn [ ccc-up-down | pw-delete | pw-switch | pw-up-down ] *

Default

SNMP notifications for L2VPN PW are disabled.

Views

System view

Predefined user roles

network-admin

Parameters

ccc-up-down: Enables Circuit Cross Connect (CCC) up and down notifications.

pw-delete: Enables PW deletion notifications.

pw-switch: Enables PW primary/backup switchover notifications.

pw-up-down: Enables PW up-down notifications.

Usage guidelines

This feature enables L2VPN to generate SNMP notifications when CCC up and down, PW deletions, PW status changes, or PW switchovers occur. For L2VPN event notifications to be sent correctly, you must also configure SNMP on the device. For more information about SNMP configuration, see the network management and monitoring configuration guide for the device.

If you do not specify a notification type, this command enables all types of notifications for L2VPN PW.

Examples

# Enable PW up-down notifications.

<Sysname> system-view

[Sysname] snmp-agent trap enable l2vpn pw-up-down

Related commands

display snmp-agent trap-list (Network Management and Monitoring Command Reference)

statistics enable (cross-connect PW view)

Use statistics enable to enable packet statistics for a PW.

Use undo statistics enable to disable packet statistics for a PW.

Syntax

statistics enable

undo statistics enable

Default

Packet statistics is disabled for PWs created from the CLI, and is enabled for PWs created from the MIB.

Views

Cross-connect PW view

Predefined user roles

network-admin

Usage guidelines

Enabling/disabling packet statistics for the primary PW automatically enables/disables packet statistics for the backup PW.

To display the collected packet statistics, use the display l2vpn pw verbose command.

Examples

# Enable packet statistics for a PW.

<Sysname> system-view

[Sysname] xconnect-group vpws

[Sysname-xcg-vpws] connection ldp

[Sysname-xcg-vpws-ldp] peer 5.5.5.5 pw-id 120

[Sysname-xcg-vpws-ldp-5.5.5.5-120] statistics enable

Related commands

display l2vpn pw

reset l2vpn statistics pw

tunnel-policy (auto-discovery cross-connect view)

Use tunnel-policy to specify a tunnel policy for an auto-discovery cross-connect.

Use undo tunnel-policy to restore the default.

Syntax

tunnel-policy tunnel-policy-name

undo tunnel-policy

Default

No tunnel policy is specified.

Views

Auto-discovery cross-connect view

Predefined user roles

network-admin

Parameters

tunnel-policy-name: Specifies a tunnel policy by its name, a case-sensitive string of 1 to 19 characters.

Usage guidelines

The PWs on the auto-discovery cross-connect use the specified tunnel policy to select public tunnels.

If you do not specify a tunnel policy or specify a nonexistent tunnel policy, the default tunnel policy applies. The default tunnel policy selects only one public tunnel for a PW.

Examples

# Specify tunnel policy policy1 for the auto-discovery cross-connect in cross-connect group bbb.

<Sysname> system-view

[Sysname] tunnel-policy policy1

[Sysname-tunnel-policy-policy1] quit

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] auto-discovery bgp

[Sysname-xcg-bbb-auto] site 2 range 10 default-offset 0

[Sysname-xcg-bbb-auto-2] connection remote-site-id 3

[Sysname-xcg-bbb-auto-2-3] tunnel-policy policy1

Related commands

tunnel-policy (system view)

vlan-type s-vid

Use vlan-type s-vid to enable a subinterface to add the specified SVLAN tag to received packets.

Use undo vlan-type s-vid to restore the default.

Syntax

vlan-type s-vid vlan-id

undo vlan-type s-vid

Default

A subinterface does not add any SVLAN tag to received packets.

Views

Layer 3 subinterface view

Predefined user roles

network-admin

Parameters

vlan-id: Specifies SVLAN tag, in the range 1 to 4094.

Usage guidelines

Application scenarios

By default, on an MPLS L2VPN network, a subinterface connected to the network does not add any SVLAN tag to received packets. Without adding different SVLAN tags for different users or services, the network cannot effectively support flexible operations with multiple users and services. To improve the flexibility of the network, perform this task to add the specified SVLAN tag to received packets.

With this feature configured, a subinterface adds the specified SVLAN tag to the received private network packets and removes the SVLAN tag when it sends packets to users.

Restrictions and guidelines

A Layer 3 subinterface enabled with this feature does not support Layer 3 forwarding.

Examples

# Enable the subinterface to add SVLAN 20 in the outer VLAN tag of received packets.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1.1

[Sysname-GigabitEthernet1/0/1.1] vlan-type s-vid 20

vpn-target

Use vpn-target to configure route targets for a cross-connect group.

Use undo vpn-target to remove the specified or all route targets for a cross-connect group.

Syntax

vpn-target vpn-target&<1-8> [ both | export-extcommunity | import-extcommunity ]

undo vpn-target { vpn-target&<1-8> | all } [ both | export-extcommunity | import-extcommunity ]

Default

No route targets are configured for a cross-connect group.

Views

Auto-discovery cross-connect group view

Predefined user roles

network-admin

Parameters

vpn-target&<1-8>: Specifies a space-separated list of a maximum of eight route targets.

A route target is a string of 3 to 21 characters in one of the following formats:

· 16-bit AS number:32-bit user-defined number. For example, 101:3.

· 32-bit IP address:16-bit user-defined number. For example, 192.168.122.15:1.

· 32-bit AS number:16-bit user-defined number, where the AS number must be equal to or greater than 65536. For example, 65536:1.

both: Uses the specified route targets as both import targets and export targets. The both keyword is used when you do not specify any of both, export-extcommunity, and import-extcommunity.

export-extcommunity: Uses the specified route targets as export targets.

import-extcommunity: Uses the specified route targets as import targets.

all: Removes all route targets.

Usage guidelines

A local PE sets the route targets as export targets in BGP update messages when it advertises L2VPN information through the update messages to a remote peer. The peer uses its import targets to match the received export targets. If a match is found, the peer accepts the L2VPN information.

You can repeat the vpn-target command to configure multiple route targets for a cross-connect group.

Examples

# Configure import route targets as 10:1 100:1 1000:1 and export route targets as 20:1 200:1 2000:1 for BGP cross-connect group bbb.

<Sysname> system-view

[Sysname] xconnect-group bbb

[Sysname-xcg-bbb] auto-discovery bgp

[Sysname-xcg-bbb-auto] vpn-target 10:1 100:1 1000:1 import-extcommunity

[Sysname-xcg-bbb-auto] vpn-target 20:1 200:1 2000:1 export-extcommunity

xconnect-group

Use xconnect-group to create a cross-connect group and enter its view, or enter the view of an existing cross-connect group.

Use undo xconnect-group to delete a cross-connect group.

Syntax

xconnect-group group-name

undo xconnect-group group-name

Default

No cross-connect groups exist.

Views

System view

Predefined user roles

network-admin

Parameters

group-name: Specifies a name for the cross-connect group, a case-sensitive string of 1 to 31 characters excluding hyphens.

Usage guidelines

L2VPN can create multiple LDP, BGP, and static PWs for a cross-connect group.

Examples

# Create a cross-connect group named vpn1 and enter cross-connect group view.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1]

Related commands

display l2vpn xconnect-group

10-MPLS Command Reference

MPLS L2VPN commands

description

display l2vpn interface

display l2vpn xconnect-group

l2vpn switchover

mtu

reset l2vpn statistics ac

revertive

rr-filter

statistics enable (cross-connect PW view)

tunnel-policy (auto-discovery cross-connect view)

Application scenarios

Restrictions and guidelines

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