10-MPLS Command Reference

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08-MPLS L2VPN commands
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MPLS L2VPN commands

The following compatibility matrix shows the support of hardware platforms for MPLS L2VPN:

 

Hardware

MPLS L2VPN compatibility

MSR810, MSR810-W, MSR810-W-DB, MSR810-LM, MSR810-W-LM, MSR810-10-PoE, MSR810-LM-HK, MSR810-W-LM-HK, MSR810-LMS-EA

MSR810, MSR810-W, MSR810-W-DB, MSR810-LM, MSR810-W-LM, MSR810-10-PoE, MSR810-LM-HK, MSR810-W-LM-HK: Yes

MSR810-LMS-EA: No

MSR810-LMS, MSR810-LUS

Yes

MSR2600-6-X1, MSR2600-10-X1

Yes

MSR 2630

Yes

MSR3600-28, MSR3600-51

Yes

MSR3600-28-SI, MSR3600-51-SI

No

MSR3600-28-X1, MSR3600-28-X1-DP, MSR3600-51-X1, MSR3600-51-X1-DP

Yes

MSR3610-I-DP, MSR3610-IE-DP

Yes

MSR3610-X1, MSR3610-X1-DP, MSR3610-X1-DC, MSR3610-X1-DP-DC

Yes

MSR 3610, MSR 3620, MSR 3620-DP, MSR 3640, MSR 3660

Yes

MSR3610-G, MSR3620-G

Yes

ac interface

Use ac interface to bind a Layer 3 interfaceto a cross-connect.

Use undo ac interface to remove the binding.

Syntax

ac interface interface-type interface-number[ track track-entry-number&<1-3> ]

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.

track track-entry-number&<1-3>: Specifies a space-separated list of up to three 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.

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

Related commands

connection

display l2vpn interface

encapsulation

pw-type

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 restore the default.

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 the label-value argument is 0 to 1023.

out-label label-value: Specifies the outgoing label for the backup PW. The value range is 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.

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 or cross-connect PW.

Backup PW and multi-segment PW are mutually exclusive with each other. If you have configured a multi-segment PW, you cannot configure a backup PW for the two PWs that form the multi-segment PW. If you have configured a backup PW for a PW, the PW cannot form a multi-segment PW. For information about configuring a multi-segment PW, see the peer command.

When you add a static PW, you must make sure that static PW uses a different incoming label than an existing static LSP or static CRLSP. If the incoming label is duplicated, you cannot make the static PW take effect by changing the incoming label of the static LSP or CRLSP. Instead, you must delete the static PW and then reconfigure the static PW 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

display l2vpn ldp

display l2vpn pw

peer

bandwidth

Use bandwidth to set the expected bandwidth for a PW.

Use undo bandwidth to restore the default.

Syntax

bandwidth bandwidth-value

undo bandwidth

Default

The expected bandwidth is 10000000 kbps.

Views

Cross-connect PW view

Predefined user roles

network-admin

Parameters

bandwidth-value: Specifies the expected bandwidth in the range of 1 to 10000000 kbps.

Examples

# Set the expected bandwidth to 10000 kbps for a PW.

<Sysname> system-view

[Sysname] xconnect-group vpn1

[Sysname-xcg-vpn1] connection pw2pw

[Sysname-xcg-vpn1-pw2pw] peer 1.1.1.1 pw-id 1

[Sysname-xcg-vpn1-pw2pw-1.1.1.1-1] bandwidth 10000

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

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

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

·     Execute the ac interface and ccc commands 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 has the following functions:

·     Avoids 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.

·     Transfers specific Layer 2 frame flags, such as the FECN bit and BECN bit of Frame Relay.

·     Transfers OAM flags for TDM circuits, such as Loss of Signal (LOS) and Alarm Indication Signal (AIS).

·     Identifies the original payload length for packets that include padding.

When the PW data encapsulation type is FR DLCI or ATM AAL5 SDU VCC, packets on the PW always carry the control word field, and the control word feature cannot be disabled.

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

default-nexthop

Use default-nexthop to specify the default next hop.

Use undo default-nexthop to restore the default.

Syntax

default-nexthop { ip ip-address | mac { mac-address | broadcast } }

undo default-nexthop

Default

No default next hop is specified.

Views

Interface view

Predefined user roles

network-admin

Parameters

ip ip-address: Specifies the IP address of the default next hop.

mac: Specifies the MAC address of the default next hop.

mac-address: Specifies the MAC address of the default next hop.

broadcast: Uses the broadcast MAC address as the MAC address of the default next hop.

Usage guidelines

If a CE is connected to a PE through an Ethernet link in an MPLS L2VPN interworking scenario, configure the default next hop on the PE. This allows the PE to encapsulate a link layer header for the packets to be sent to the CE.

If you specify the CE's MAC address or a broadcast MAC address as the default next hop, the PE uses this MAC address as the destination address of the outgoing packets. If you specify the CE's IP address as the default next hop, the PE performs the following operations:

1.     Resolves the IP address to a MAC address through ARP.

2.     Uses the resolved MAC address as the destination MAC address of the outgoing packets.

Examples

# Specify the default next hop IP address as 1.1.1.1 on GigabitEthernet 1/0/1 (PE's interface connected to the CE).

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] default-nexthop ip 1.1.1.1

description (cross-connect group view)

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 1 to 120.

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            : 1

 Local Label Block  : 1034/10/0

 Remote Label Block : 1162/10/0

 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.

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

In standalone mode:

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

In IRF mode:

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 an IRF member device by its member ID. If you do not specify a member device, this command displays cross-connect forwarding information for the master device. (In IRF mode.)

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: 2

Total number of ACs: 2

 

AC                               Xconnect-group Name             Link ID

GE1/0/1                          vpn1                            0

GE1/0/2                          vpn2                            0

Table 7 Command output

Field

Description

Total number of cross-connections

Total number of cross-connects, including cross-connects not bound to any ACs.

AC

AC type:

Layer 3 interface.

 

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

<Sysname> display l2vpn forwarding ac verbose

Xconnect-group Name: vpws1

 Connection Name: actopw

  Interface: GE1/0/1

    Link ID      : 1

    Access Mode  : Ethernet

 Connection Name: actoac

  Interface: GE1/0/2

    Link ID      : 0

    Access Mode  : Ethernet

  Interface: GE1/0/3

    Link ID      : 1

    Access Mode  : Ethernet

    Reflectors   :

      IP Address       MAC Address       Src Port    Dst Port    State

      100.1.1.4        8850-fc51-5cee    200         201         Succeeded

      100.1.2.5        3aad-0b9f-0116    49184       7           Succeeded

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.

State

Packet reflection configuration issuing state:

·     Succeeded—The packet reflection configuration has been issued to the drive.

·     Reloading—The packet reflection configuration is being re-issued to the drive.

·     Failed—Failed to issue the packet reflection configuration to the drive.

 

# 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       0          Up

vpn1                            1278/1151       1027       1          Up

Table 9 Command output

Field

Description

Total number of cross-connections

Total number of cross-connects, including those not bound to any PW.

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.

 

# 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: 0

    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

    Tunnel Group ID : 0x60000000

    Tunnel NHLFE IDs: 1025

  Link ID: 1

    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

    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.

PW Attributes

PW attribute:

·     Main—The PW is the primary PW.

·     Backup—The PW is the backup 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.

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.

 

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: 2, 2 up, 0 down

 

Interface                Owner                           Link ID   State    Type

GE1/0/1                  vpws1                           1         Up       VPWS

GE1/0/2                  vpws2                           1         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    : 1

    State      : UP

    Type       : VPWS

 

Interface :   GE1/0/2

    Owner      : vpws2

    Link ID    : 1

    State      : UP

    Type       : VPWS

    Statistics : Enabled

    Input Statistics:

      Octets   :0

      Packets  :0

    Output Statistics:

      Octets   :0

      Packets  :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.

 

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       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.

 

# 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: -/-

    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.

 

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, BY - bypass,  H - hub link, S - spoke link,  N - no split horizon

Total number of PWs: 2

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

 

Xconnect-group Name: ldp

Peer            PW ID/Rmt Site    In/Out Label    Proto   Flag  Link ID  State

192.3.3.3       500               1299/1299       LDP     M     0        Up

 

Xconnect-group Name: vpnb

Peer            PW ID/Rmt Site    In/Out Label    Proto   Flag  Link ID  State

192.3.3.3       2                 1036/1163       BGP     M     1        Up

Table 14 Command output

Field

Description

Flags

PW flag.

PW ID/Rmt Site

This field displays the PW ID for a static or LDP PW, and displays the remote site ID for a BGP PW.

Proto

Protocol that established the PW: LDP, Static, or BGP.

Flag

PW attribute:

·     M—Primary PW.

·     B—Backup PW.

·     BY—Bypass PW. This flag 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 a static CRLSP.

 

# 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             : 0          PW State : Up

    In Label            : 1299       Out Label: 1299

    MTU                 : 1500

    PW Attributes       : Main

    VCCV CC             : -

    VCCV BFD            : -

    Tunnel Group ID     : 0x800000160000000

    Tunnel NHLFE IDs    : 1026

 

Xconnect-group Name: vpnb

 Connection of auto-discovery: Site 1

  Peer: 192.3.3.3        Remote Site: 2

    Signaling Protocol  : BGP

    Link ID             : 1          PW State : Up

    In Label            : 1036       Out Label: 1163

    MTU                 : 1500

    PW Attributes       : Main

    VCCV CC             : -

    VCCV BFD            : -

    Tunnel Group ID     : 0x800000160000000

    Tunnel NHLFE IDs    : 1026

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 a 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.

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.

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.

Connection of auto-discovery

The PW is a BGP PW.

Site

Local site ID.

Remote site

Remote site ID.

 

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 Type              Control Word   VCCV CC        VCCV BFD

pw1                 Ethernet             Enabled        Router-Alert   BFD

pw2                 VLAN                 Disabled       Router-Alert   BFD

Table 16 Command output

Field

Description

PW Type

PW data encapsulation type: Ethernet or VLAN.

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.

 

# Display detailed information about all PW classes.

<Sysname> display l2vpn pw-class verbose

PW Class Name : pw1

  PW Type     : Ethernet

  Control Word: Enabled

  VCCV CC     : Router-Alert

  VCCV BFD    : BFD

  Sequencing  : Both

 

PW Class Name : pw2

  PW Type     : VLAN

  Control Word: Disabled

  VCCV CC     : Router-Alert

  VCCV BFD    : BFD

  Sequencing  : -

Table 17 Command output

Field

Description

PW Type

PW data encapsulation type: Ethernet or VLAN.

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

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.

 

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 ] [ 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.

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

Examples

# Display brief information about all cross-connect groups.

<Sysname> display l2vpn xconnect-group

Total number of cross-connections: 3, 0 up, 3 down, 0 admin down

 

Xconnect-group Name             Connection ID   MTU    State

abc                             0               1500   Down

vpn1                            2               1500   Down

vpn2                            1               1500   Down

Table 18 Command output

Field

Description

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.

 

# Display detailed information about all cross-connect groups.

<Sysname> display l2vpn xconnect-group verbose

Xconnect-group Name: vpnb

 Connection Name   : pw2pw

  Connection ID    : 2

  State            : Down

  MTU              : 1500

  PW Redundancy    : Slave

 

 Connection of auto-discovery: Site 1, Remote Site 2

  Connection ID    : 0

  State            : Up

  MTU              : 1500

  PW Redundancy    : Slave

  BGP PWs:

    Peer            PW ID            Link ID    State

    192.3.3.3       2                1          Up

  ACs:

    AC                               Link ID    State

    GE1/0/1                          0          Up

Table 19 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.

PW Redundancy

PW redundancy 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.

Interworking IPv4

IPv4 interworking state: Enabled or Disabled.

State

PW state: Up, Down, Blocked, or Defect.

AC

AC type: Layer 3 interface.

 

Related commands

xconnect-group

interworking

Use interworking to enable interworking for a cross-connect.

Use undo interworking to disable interworking for a cross-connect.

Syntax

interworking ipv4

undo interworking

Default

Interworking is disabled for a cross-connect.

Views

Cross-connect view

Predefined user roles

network-admin

Parameters

ipv4: Specifies IPv4 interworking.

Usage guidelines

Interworking enables a PW to connect ACs that have different link types. In an IPv4 interworking scenario, a PE extracts IPv4 packets from frames received from the AC and sends the packets to the peer PE through the PW. The peer PE uses the link protocol of the connected AC to encapsulate the IPv4 packets and sends the packets through the AC. This method hides the link types of ACs at the two ends.

IPv4 interworking discards non-IPv4 packets received from the AC.

When interworking is enabled, the PW data encapsulation type configuration does not take effect.

Examples

# Enable IPv4 interworking 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] interworking ipv4

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

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

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.

To create a multi-segment PW, execute the peer command twice to create two cross-connect PWs in the same cross-connect view. The two PWs form a multi-segment PW.

When you add a static PW, you must make sure that static PW uses a different incoming label than an existing static LSP or static CRLSP. If the incoming label is duplicated, you cannot make the static PW take effect by changing the incoming label of the static LSP or CRLSP. Instead, you must delete the static PW and then reconfigure the static PW with an unused incoming label.

Examples

# Configure an LDP PW destined to 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 to 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

ppp ipcp ignore local-ip

Use ppp ipcp ignore local-ip to configure PPP to support IPCP negotiation without an IP address.

Use undo ppp ipcp ignore local-ip to restore the default.

Syntax

ppp ipcp ignore local-ip

undo ppp ipcp ignore local-ip

Default

PPP does not support IPCP negotiation without an IP address, and the local interface must be configured with an IP address to perform IPCP negotiation with the peer.

Views

Interface view

Predefined user roles

network-admin

Usage guidelines

In an MPLS L2VPN interworking scenario, link layer negotiation packets cannot be delivered on the network, and Layer 2 connections cannot be established directly between CEs. Therefore, PEs must establish Layer 2 connections with the connected CEs. For example, on a PPP link, the PE and its connected CE perform PPP negotiation to establish a PPP connection.

If the PE's interface that is connected to the CE has an IP address, IPCP negotiation is performed.

If the interface does not have an IP address, use this command to ensure a successful IPCP negotiation without an IP address. The configuration for IPCP negotiation without an IP address takes precedence over the IPCP proxy IP address configuration.

Examples

# Configure PPP to support IPCP negotiation without an IP address on Serial 2/1/0.

<Sysname> system-view

[Sysname] interface serial 2/1/0

[Sysname-Serial2/1/0] link-protocol ppp

[Sysname-Serial2/1/0] ppp ipcp ignore local-ip

Related commands

ppp ipcp proxy

ppp ipcp proxy

Use ppp ipcp proxy to specify an IPCP proxy IP address.

Use undo ppp ipcp proxy to restore the default.

Syntax

ppp ipcp proxy ip-address

undo ppp ipcp proxy

Default

No IPCP proxy IP address is specified.

Views

Interface view

Predefined user roles

network-admin

Parameters

ip-address: Specifies an IPCP proxy IP address.

Usage guidelines

In an MPLS L2VPN interworking scenario, link layer negotiation packets cannot be delivered on the network, and Layer 2 connections cannot be established directly between CEs. Therefore, PEs must establish Layer 2 connections with the connected CEs. For example, on a PPP link, the PE and its connected CE perform PPP negotiation to establish a PPP connection.

If the PE's interface that is connected to the CE has an IP address, IPCP negotiation is performed.

If the interface does not have an IP address, use this command to specify the IPCP proxy IP address as the IP address of the peer CE. This ensures a successful IPCP negotiation. The configuration for IPCP negotiation without an IP address takes precedence over the IPCP proxy IP address configuration.

Examples

# Specify the IPCP proxy IP address as 1.1.1.1.

<Sysname> system-view

[Sysname] interface serial 2/1/0

[Sysname-Serial2/1/0] link-protocol ppp

[Sysname-Serial2/1/0] ppp ipcp proxy 1.1.1.1

Related commands

ppp ipcp ignore local-ip

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 the master/slave PW redundancy mode and configure the local PE as the master node.

Use undo pw-redundancy to restore the default.

Syntax

pw-redundancy master

undo pw-redundancy

Default

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

Views

Cross-connect view

Predefined user roles

network-admin

Parameters

master: Uses the master/slave PW redundancy mode and configures the local PE as the master node.

Usage guidelines

This command is applicable only to LDP PWs.

For LDP PWs, PEs use LDP to negotiate the active/standby states of the PWs. In master/slave mode, one endpoint PE of a PW operates as the master node and the other endpoint PE operates as the slave node. The master PE determines the active/standby state of the PW and 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 traffic.

The slave PE does not need to send the PW states to the master PE and the master PE ignores the PW states sent by the slave PE.

Do not configure this command on the local PE if the remote PE does not support the master/slave PW redundancy mode.

Examples

# Use the master/slave PW redundancy mode and configure 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

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-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-number: Specifies an extended community list number in the range of 1 to 199.

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)

sequencing

Use sequencing to enable sequencing for packets on a PW.

Use undo sequencing to restore the default.

Syntax

sequencing both

undo sequencing both

Default

Sequencing is disabled for packets on a PW.

Views

PW class view

Predefined user roles

network-admin

Parameters

both: Enables sequencing for both incoming and outgoing packets on a PW.

Usage guidelines

During packet switching, packet disorder might occur due to load balancing or heavy forwarding load. To ensure that packets are forwarded correctly, enable packet sequencing on the ingress and egress PEs. Then, the ingress PE adds a sequence number to each packet on the PW, and the egress PE resequences the packets according to the sequence numbers.

If packet sequencing is enabled on the remote PE, not on the local PE, the local PE does not sequence the received packets with sequence numbers.

Examples

# Enable sequencing for both incoming and outgoing packets on PWs that use PW class aaa.

<Sysname> system-view

[Sysname] pw-class aaa

[Sysname-pwc-aaa] sequencing both

shutdown (cross-connect group view)

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 [ pw-delete | pw-switch | pw-up-down ] *

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

Default

SNMP notifications for L2VPN PW are disabled.

Views

System view

Predefined user roles

network-admin

Parameters

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 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)

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 in this order: LSP tunnel, GRE tunnel, CRLSP tunnel.

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)

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.

If you repeat this command, all the configured route targets take effect.

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