Use address-family ipv4 mdt to create a BGP IPv4 MDT address family and enter its view, or enter the view of the existing BGP IPv4 MDT address family.

Use undo address-family ipv4 mdt to delete the BGP IPv4 MDT address family and all configurations in BGP IPv4 MDT address family view.

Syntax

address-family ipv4 mdt

undo address-family ipv4 mdt

Default

No BGP IPv4 MDT address family exists.

Views

BGP instance view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

Execute this command before you use the peer enable command to enable BGP peers to exchange MDT information. MDT information includes the IP address of a PE device and the default group to which the PE device belongs. On a public network running PIM-SSM, multicast VPN establishes a default MDT rooted at the PE device (multicast source) based on the MDT information.

Configurations in BGP IPv4 MDT address family view take effect only on BGP MDT messages, BGP MDT peers, and BGP MDT peer groups.

Examples

# In BGP instance view of BGP instance default, create a BGP IPv4 MDT address family and enter its view.

<Sysname> system-view

[Sysname] bgp 100

[Sysname-bgp-default] address-family ipv4 mdt

[Sysname-bgp-default-mdt]

# In BGP instance view of BGP instance abc, create a BGP IPv4 MDT address family and enter its view.

<Sysname> system-view

[Sysname] bgp 100 instance abc

[Sysname-bgp-abc] address-family ipv4 mdt

[Sysname-bgp-abc-mdt]

Related commands

peer enable (see Layer 3—IP Routing Command Reference)

data-delay

Use data-delay to set the data-delay period (delay period before the device switches over from the default MDT to the data MDT).

Use undo data-delay to restore the default.

Syntax

data-delay delay

undo data-delay

Default

The data-delay period is 3 seconds.

Views

MVPN IPv4 address family view

Predefined user roles

network-admin

mdc-admin

Parameters

delay: Specifies a data-delay period in the range of 1 to 60 seconds.

Usage guidelines

This command is available only for an MDT-based MVPN.

Examples

# In MVPN IPv4 address family view of VPN instance mvpn, set the data-delay period to 20 seconds.

<Sysname> system-view

[Sysname] multicast-mvpn vpn-instance mvpn mode mdt

[Sysname-mvpn-mvpn] address-family ipv4

[Sysname-mvpn-mvpn-ipv4] data-delay 20

data-group

Use data-group to specify a data group range and optionally configure the criteria for the device to initiate a switchover of the default MDT to a data MDT.

Use undo data-group to restore the default.

Syntax

data-group group-address { mask-length | mask } [ acl acl-number]

undo data-group

Default

No data group range exists, and the device never initiates a switchover of the default MDT to a data MDT.

Views

MVPN IPv4 address family view

Predefined user roles

network-admin

mdc-admin

Parameters

group-address: Specifies a multicast group address in the range of 224.0.1.0 to 239.255.255.255.

mask-length: Specifies a mask length for the multicast group address. The value range for this argument is 24 to 32.

mask: Specifies a subnet mask for the multicast group address. The value range for this argument is 255.255.255.x, where x can be only 0, 128, 192, 224, 240, 248, 252, 254, or 255.

acl acl-number: Specifies an advanced ACL by its number in the range of 3000 to 3999. If you specify an ACL, the multicast data permitted by the ACL can trigger the switchover. If you do not specify an ACL, any multicast data can trigger the switchover. For the ACL to take effect, specify the protocol type as IP, and include the source and destination keywords when you create an ACL rule. The source and destination keywords specify a multicast source address range and a multicast group address range, respectively.

Usage guidelines

On a PE, the data group range for an MVPN cannot include the default group or data groups of any other MVPN.

All VPN instances share the data group resources. As a best practice to avoid data group resource exhaustion, specify a reasonable data group range for a VPN instance.

The data group ranges for different MDs on different PE devices cannot overlap with one another if the PIM mode is not PIM-SSM on the public network.

If you execute this command multiple times in the same MVPN IPv4 address family view, the most recent configuration takes effect.

This command is available only for an MDT-based MVPN.

Examples

# In MVPN IPv4 address family view of VPN instance mvpn, specify 239.1.2.0 through 239.1.2.255 as the data group range.

<Sysname> system-view

[Sysname] multicast-mvpn vpn-instance mvpn mode mdt

[Sysname-mvpn-mvpn] address-family ipv4

[Sysname-mvpn-mvpn-ipv4] data-group 239.1.2.0 24

default-group

Use default-group to specify a default group.

Use undo default-group to restore the default.

Syntax

default-group group-address

undo default-group

Default

No default group exists.

Views

MVPN IPv4 address family view

Predefined user roles

network-admin

mdc-admin

Parameters

group-address: Specifies a default group in the range of 224.0.1.0 to 239.255.255.255.

Usage guidelines

You must specify the same default group on all PE devices that belong to the same MVPN.

The default group for an MVPN must be different from the default group and the data group used by any other MVPN.

This command is available only for an MDT-based MVPN.

Examples

# In MVPN IPv4 address family view of VPN instance mvpn, specify 239.1.1.1 as the default group.

<Sysname> system-view

[Sysname] multicast-mvpn vpn-instance mvpn mode mdt

[Sysname-mvpn-mvpn] address-family ipv4

[Sysname-mvpn-mvpn-ipv4] default-group 239.1.1.1

[Sysname-mvpn-mvpn-ipv4] quit

display bgp routing-table ipv4 mdt

Use display bgp routing-table ipv4 mdt to display BGP MDT routing information.

Syntax

display bgp [ instance instance-name ] routing-table ipv4 mdt [ route-distinguisher route-distinguisher ] [ ip-address [ advertise-info ] ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

instance instance-name: Specifies a BGP instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a BGP instance, this command displays BGP MDT routing information for BGP instance default.

route-distinguisher route-distinguisher: Specifies an RD, a string of 3 to 21 characters. If you do not specify an RD, this command displays BGP MDT routing information for all RDs. 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.

ip-address: Specifies a multicast source by its IP address. The ip-address argument represents the IP address of the PE device in the default MDT. If you do not specify a multicast source, this command displays brief information about BGP MDT routes for all multicast sources.

advertise-info: Displays advertisement information. If you do not specify this keyword, no advertisement information is displayed.

Examples

# Display brief information about BGP MDT routes for all multicast sources.

<Sysname> display bgp routing-table ipv4 mdt

BGP local router ID is 1.1.1.1

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

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

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

Route distinguisher: 100:1

Total number of routes: 2

Network NextHop MED LocPrf PrefVal Path/Ogn

* > 1.1.1.1/32 0.0.0.0 32768 ?

* >i 2.2.2.2/32 2.2.2.2 100 0 ?

# Display detailed information about BGP MDT routes for multicast source 1.1.1.1.

<Sysname> display bgp routing-table ipv4 mdt 1.1.1.1

BGP local router ID: 1.1.1.1

Local AS number: 100

Route distinguisher: 100:1

Total number of routes: 1

Paths: 1 available, 1 best

BGP MDT information of source 1.1.1.1:

Default-group : 224.1.1.1

Original nexthop: 0.0.0.0

AS-path : (null)

Origin : incomplete

Attribute value : pref-val 32768

State : valid, local, best

IP precedence : N/A

QoS local ID : N/A

Traffic index : N/A

# Display advertisement information about BGP MDT routes for multicast source 1.1.1.1.

<Sysname> display bgp routing-table ipv4 mdt 1.1.1.1 advertise-info

BGP local router ID: 1.1.1.1

Local AS number: 100

Route distinguisher: 100:1

Total number of routes: 1

Paths: 1 best

BGP MDT information of source 1.1.1.1:

Default-group: 224.1.1.1

Advertised to peers (1 in total):

6.6.6.6

Table 1 Command output

Field	Description
BGP local router ID	ID of the local router.
Status codes	Codes of route status: · * – valid—Valid route. · > – best—Optimal 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 route information: · IGP—Originated in the AS. · EGP—Learned through EGP. · incomplete—Learned by some other means.
Total number of routes	Total number of BGP MDT routes.
Network	Source IP address of the default MDT.
NextHop	IP address of the next hop.
MED	Attribute value of Multi-Exit-Discrimination (MED).
LocPrf	Local preference value.
PrefVal	Preferred value of a route.
Path/Ogn	AS PATH attribute and ORIGIN attribute: · AS_PATH—Records the ASs the packet has passed to avoid routing loops. · ORIGIN—Identifies the origin of the BGP MDT routes.
Paths	Number of the BGP MDT routes: · available—Number of valid BGP MDT routes. · best—Number of the optimal BGP MDT routes.
BGP MDT information of source 1.1.1.1	BGP MDT routing information for the multicast source 1.1.1.1.
Default-group	Default-group address to which the route belongs.
Advertised to peers (1 in total)	Peers to which the route has been advertised and total number of peers.
From	IP address of the BGP peer that advertises the BGP MDT route.
Original nexthop	IP address of the original next hop. If the BGP MDT route is learned from the BGP update message, this field displays the IP address of the next hop that receives the message.
AS-path	AS PATH attribute of the path, recording the ASs that the BGP MDT route has passed to avoid routing loops.
Attribute value	Attributes of the BGP MDT routes: · MED—MED value related to destination network. · Localpref—Local preferred value. · pref-val—Preferred value of the route. · pre—Preferred value of the protocol.
State	Current states: · valid—Valid routes. · internal—Internal routes. · external—External routes. · local—Local routes. · synchronize—Synchronized routes. · best—Optimal routes.
IP precedence	IP precedence of the route, which is set by the QPPB feature. This field displays N/A if the route does not carry this field.
QoS local ID	QoS local ID of the route, which is set by the QPPB feature. This field displays N/A if the route does not carry this field.
Traffic index	Traffic index of the route, which is set by the QPPB feature. This field displays N/A if the route does not carry this field.

display multicast-mvpn data-group receive

Use display multicast-mvpn data-group receive to display information about data groups for IPv4 multicast transmission that are received in a VPN instance.

Syntax

display multicast-mvpn vpn-instance vpn-instance-name data-group receive [ brief | [ active | group group-address | sender source-address | vpn-source-address [ mask { mask-length | mask } ] | vpn-group-address [ mask { mask-length | mask } ] ] * ]

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters.

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

active: Specifies data groups that have joined the data MDT.

group group-address: Specifies a data group by its IP address in the range of 224.0.1.0 to 239.255.255.255.

sender source-address: Specifies an MVPN source interface by its IP address.

vpn-source-address: Specifies a multicast source address of the specified VPN instance.

vpn-group-address: Specifies a multicast group address of the specified VPN instance. The value range for this argument is 224.0.0.0 to 239.255.255.255.

mask-length: Specifies a mask length of the specified multicast source address or multicast group address. The value range for this argument is 0 to 32, and the default is 32.

mask: Specifies a subnet mask of the specified multicast source address or multicast group address. The default is 255.255.255.255.

Examples

# Display detailed information about data groups for IPv4 multicast transmission that are received in VPN instance mvpn.

<Sysname> display multicast-mvpn vpn-instance mvpn data-group receive

MVPN data-group information received by VPN instance: mvpn

Total 2 data-groups for 8 entries

Total 2 data-groups and 8 entries matched

Data-group: 226.1.1.0 Reference count: 4 Active count: 2

Sender: 172.100.1.1 Active count: 1

(192.6.1.5, 239.1.1.1) expires: 00:03:10 active

(192.6.1.5, 239.1.1.158) expires: 00:03:10

Sender: 181.100.1.1, active count: 1

(195.6.1.2, 239.1.2.12) expires: 00:03:10 active

(195.6.1.2, 239.1.2.197) expires: 00:03:10

Data-group: 229.1.1.0 Reference count: 4 Active count: 2

Sender: 185.100.1.1 Active count: 1

(198.6.1.5, 239.1.3.62) expires: 00:03:10 active

(198.6.1.5, 225.1.1.109) expires: 00:03:10

Sender: 190.100.1.1 Active count: 1

(200.6.1.2, 225.1.4.80) expires: 00:03:10 active

(200.6.1.2, 225.1.4.173) expires: 00:03:10

# Display brief information about data groups for IPv4 multicast transmission that are received in VPN instance mvpn.

<Sysname> display multicast-mvpn vpn-instance mvpn data-group receive brief

MVPN data-group information received by VPN instance: mvpn

Total 2 data-groups for 8 entries

Total 2 data-groups and 8 entries matched

Data-group: 226.1.1.0 Reference count: 4 Active count: 2

Data-group: 229.1.1.0 Reference count: 4 Active count: 2

Table 2 Command output

Field	Description
MVPN data-group information received by VPN instance: mvpn	Information about data groups for IPv4 multicast transmission that are received in VPN instance mvpn.
Total 2 data-groups for 8 entries	A total of 2 data groups, associated with 8 (S, G) entries.
Total 2 data-groups and 8 entries matched	A total of 2 matching data groups, associated with 8 (S, G) entries.
Data-group	IP address of the received data group.
Sender	BGP peer address of the PE device that sent the data group.
Reference count	Number of (S, G) entries that use the data group in the VPN instance.
Active count	Number of active (S, G) entries (entries with active receivers) that use the data group in the VPN instance.
expires	Remaining time for the (S, G) entry that uses the data group in the VPN instance.

display multicast-mvpn data-group send

Use display multicast-mvpn data-group send to display information about data groups for IPv4 multicast transmission that are sent in a VPN instance.

Syntax

display multicast-mvpn vpn-instance vpn-instance-name data-group send [ group group-address | reuse interval | vpn-source-address [ mask { mask-length | mask } ] | vpn-group-address [ mask { mask-length | mask } ] ] *

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters.

group group-address: Specifies a data group by its IP address in the range of 224.0.1.0 to 239.255.255.255.

reuse interval: Specifies an interval during which data group reuses occur, in the range of 1 to 2147483647 seconds.

vpn-source-address: Specifies a multicast source address of the specified VPN instance.

vpn-group-address: Specifies a multicast group address of the specified VPN instance. The value range for this argument is 224.0.0.0 to 239.255.255.255.

mask-length: Specifies a mask length of the specified multicast source address or multicast group address. The value range for this argument is 0 to 32, and the default is 32.

mask: Specifies a subnet mask of the specified multicast source address or multicast group address. The default is 255.255.255.255.

Examples

# Display information about data groups for IPv4 multicast transmission that are sent in VPN instance mvpn.

<Sysname> display multicast-mvpn vpn-instance mvpn data-group send

MVPN data-group information sent by VPN instance: mvpn

Total 2 data-groups for 6 entries

Total 2 data-groups and 6 entries matched

Reference count of 226.1.1.0: 3

(192.6.1.5, 239.1.1.1) switch time: 00:00:21

(192.6.1.5, 239.1.1.158) switch time: 00:00:21

(192.6.1.5, 239.1.2.50) switch time: 00:00:05

Reference count of 226.1.1.1: 3

(192.6.1.2, 225.1.1.1) switch time: 00:00:21

(192.6.1.2, 225.1.2.50) switch time: 00:00:05

(192.6.1.5, 239.1.1.159) switch time: 00:00:21

# Display reuse information about data groups for IPv4 multicast transmission that are sent in VPN instance mvpn within 30 seconds.

<Sysname> display multicast-mvpn vpn-instance mvpn data-group send reuse 30

MVPN data-group information sent by VPN instance: mvpn

Total 2 data-groups for 3 entries

Total 2 data-groups and 3 entries matched

Reuse count of 226.1.1.0: 1

Reuse count of 226.1.1.1: 1

Reuse count of 226.1.1.2: 1

Table 3 Command output

Field	Description
MVPN data-group information sent by VPN instance: mvpn	Information about data groups for IPv4 multicast transmission that are sent in VPN instance mvpn.
Total 2 data-groups for 6 entries	A total of 2 data groups, associated with 6 (S, G) entries.
Total 2 data-groups and 6 entries matched	A total of 2 matching data groups, associated with 6 (S, G) entries.
Reference count of 226.1.1.0	Number of (S, G) entries that use the data group in the VPN instance.
switch time	Switchover time of the (S, G) entry that uses the data group in the VPN instance.
Reuse count of 226.1.1.0	Number of times that the data group is reused during the specified length of time.

display multicast-mvpn default-group

Use display multicast-mvpn default-group to display information about default groups for IPv4 multicast transmission.

Syntax

display multicast-mvpn [ vpn-instance vpn-instance-name ] default-group { local | remote }

Views

Any view

Predefined user roles

network-admin

network-operator

mdc-admin

mdc-operator

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If you do not specify a VPN instance, this command displays information about default groups of all VPN instances for IPv4 multicast transmission.

local: Specifies local default groups for IPv4 multicast transmission.

remote: Specifies remote default groups for IPv4 multicast transmission.

Examples

# Display information about the local default group for IPv4 multicast transmission in each VPN instance.

<Sysname> display multicast-mvpn default-group local

MVPN local default-group information:

Group address Source address Interface VPN instance

239.1.1.1 1.1.1.1 MTunnel0 mvpna

239.2.1.1 1.1.1.1 MTunnel1 mvpnb

239.3.1.1 -- MTunnel2 mvpnc

# Display information about the remote default group for IPv4 multicast transmission in each VPN instance.

<Sysname> display multicast-mvpn default-group remote

MVPN remote default-group information:

Group address Source address Next hop VPN instance

239.1.1.1 1.2.0.1 1.2.0.1 a

239.1.1.1 1.2.0.2 1.2.0.2 a

239.1.1.1 1.2.0.3 1.2.0.3 a

239.1.1.2 1.2.0.1 1.2.0.1 b

239.1.1.2 1.2.0.2 1.2.0.2 b

239.1.1.3 1.2.0.1 1.2.0.1 -

Table 4 Command output

Field	Description
Group address	IP address of the default group for IPv4 multicast transmission.
Source address	IP address of the MVPN source interface, which is used by the MTI as the source address to encapsulate multicast packets for the VPN instance.
Interface	MTI interface.
Next hop	IP address of the next hop.
VPN instance	VPN instance to which the default group belongs.

dscp

Use dscp to set the DSCP value for outgoing data group switchover packets.

Use undo dscp to restore the default.

Syntax

dscp dscp-value

undo dscp

Default

The DSCP value is 48 for outgoing data group switchover packets.

Views

MVPN view

Predefined user roles

network-admin

mdc-admin

Parameters

dscp-value: Specifies a DSCP value in the range of 0 to 63.

Usage guidelines

The DSCP value determines the packet transmission priority. A greater DSCP value represents a higher priority.

This command is available only for an MDT-based MVPN.

Examples

# Set the DSCP value to 63 for outgoing data group switchover packets.

<Sysname> system-view

[Sysname] multicast-vpn vpn-instance mvpn mode mdt

[Sysname-mvpn-mvpn] dscp 63

log data-group-reuse

Use log data-group-reuse to enable data group reuse logging.

Use undo log data-group-reuse to disable data group reuse logging.

Syntax

log data-group-reuse

undo log data-group-reuse

Default

Data group reuse logging is disabled.

Views

MVPN IPv4 address family view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

This command is available only for an MDT-based MVPN.

Examples

# In MVPN IPv4 address family view of VPN instance mvpn, enable data group reuse logging.

<Sysname> system-view

[Sysname] multicast-mvpn vpn-instance mvpn mode mdt

[Sysname-mvpn-mvpn] address-family ipv4

[Sysname-mvpn-mvpn-ipv4] log data-group-reuse

multicast rpf-proxy-vector compatible

Use multicast rpf-proxy-vector compatible to enable RPF vector compatibility.

Use undo multicast rpf-proxy-vector compatible to disable RPF vector compatibility.

Syntax

multicast rpf-proxy-vector compatible

undo multicast rpf-proxy-vector compatible

Default

RPF vector compatibility is disabled.

Views

System view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

This command enables the device to work with other manufacturers' products on the RPF vector. You must configure this command on all H3C routers on the public network for multicast VPN inter-AS option B.

This command is available only for an MDT-based MVPN.

Examples

# Enable RPF vector compatibility.

<Sysname> system-view

[Sysname] multicast rpf-proxy-vector compatible

multicast-mvpn

Use multicast-mvpn to create an MVPN for a VPN instance and enter its view, or enter the view of the existing MVPN.

Use undo multicast-mvpn to delete configurations in MVPN view for a VPN instance.

Syntax

multicast-vpn vpn-instance vpn-instance-name mode mdt

undo multicast-vpn vpn-instance vpn-instance-name

Default

No MVPN exists.

Views

System view

Predefined user roles

network-admin

mdc-admin

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters.

mode: Specifies the mode of the MVPN.

mdt: Specifies the MDT mode.

Examples

# Create an MDT-based MVPN for VPN instance mvpn and enter MVPN view.

<Sysname> system-view

[Sysname] multicast-mvpn vpn-instance mvpn mode mdt

[Sysname-mvpn-mvpn]

rpf proxy vector

Use rpf proxy vector to enable the RPF vector feature.

Use undo rpf proxy vector to disable the RPF vector feature.

Syntax

rpf proxy vector

undo rpf proxy vector

Default

The RPF vector feature is disabled.

Views

MRIB view

Predefined user roles

network-admin

mdc-admin

Usage guidelines

This feature enables PE devices to carry the RPF vector information in PIM join messages for other devices to perform RPF check on the messages.

You must enable this feature on PE devices (excluding the PE devices that do not have attached receivers) when you configure multicast VPN inter-AS option B.

Only the configuration made in MRIB view of a VPN instance takes effect. The configuration made in MRIB view on the public network does not take effect.

This command is available only for an MDT-based MVPN.

Examples

# Enable the RPF vector feature for VPN instance mvpn.

<Sysname> system-view

[Sysname] multicast routing vpn-instance mvpn mode mdt

[Sysname-mrib-mvpn] rpf proxy vector

source

Use source to specify an MVPN source interface.

Use undo source to restore the default.

Syntax

source interface-type interface-number

undo source

Default

No MVPN source interface is specified.

Views

MVPN IPv4 address family view

Predefined user roles

network-admin

mdc-admin

Parameters

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

Usage guidelines

For the PE device to obtain correct routing information, you must specify the interface used for establishing BGP peer relationship as the MVPN source interface.

Examples

# In MVPN IPv4 address family view of VPN instance mvpn, specify Loopback 1 as the MVPN source interface. (Loopback 1 is the source interface used for establishing BGP peer relationship.)

<Sysname> system-view

[Sysname] multicast-mvpn vpn-instance mvpn mode mdt

[Sysname-mvpn-mvpn] address-family ipv4

[Sysname-mvpn-mvpn-ipv4] source loopback 1

[Sysname-mvpn-mvpn-ipv4] quit

07 IP Multicast Command Reference

Multicast VPN commands

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