peer advertise link-bandwidth (BGP-IPv6 unicast address family view)(group)

Function

The peer advertise ebgp link-bandwidth command enables a device to advertise the Link Bandwidth extended community attribute to a specified EBGP peer group.

The undo peer advertise ebgp link-bandwidth command cancels the existing configuration.

The peer advertise link-bandwidth transitive command enables a device to convert the Link Bandwidth extended community attribute (optional non-transitive) carried in BGP routes into an optional transitive attribute before advertising the BGP routes to a specified peer group.

The undo peer advertise link-bandwidth transitive command cancels the existing configuration.

By default, a device cannot advertise the Link Bandwidth extended community attribute to an EBGP peer group, and cannot convert the Link Bandwidth extended community attribute (optional non-transitive) carried in BGP routes into an optional transitive attribute before advertising the BGP routes to a peer group.

Format

peer peerGroupName advertise ebgp link-bandwidth

peer peerGroupName advertise link-bandwidth transitive

undo peer peerGroupName advertise ebgp link-bandwidth

undo peer peerGroupName advertise link-bandwidth transitive

Parameters

Parameter	Description	Value
peerGroupName	Specifies the name of a peer group.	The name is a string of 1 to 47 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Parameter

Description

Value

peerGroupName

Specifies the name of a peer group.

The name is a string of 1 to 47 case-sensitive characters, with spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Views

BGP-IPv6 unicast address family view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	write

Usage Guidelines

Usage Scenario

To enable a device to advertise the Link Bandwidth extended community attribute to a specified EBGP peer group, run the peer advertise ebgp link-bandwidth command.

To enable a device to convert the Link Bandwidth extended community attribute (optional non-transitive) carried in BGP routes into an optional transitive attribute before advertising the BGP routes to a specified peer group, run the peer advertise link-bandwidth transitive command.

Precautions

Before running the peer advertise ebgp link-bandwidth or peer advertise link-bandwidth transitive command, you need to use a route-filter to add the Link Bandwidth extended community attribute to BGP routes. Currently, either command can be used to process only one Link Bandwidth extended community attribute per BGP route. However, if a device changes the next-hop address of a received route carrying the Link Bandwidth extended community attribute to its own address, the device deletes this attribute before advertising it to other peers.

Example

# Enable a device to advertise the Link Bandwidth extended community attribute to a specified EBGP peer group.

<HUAWEI> system-view
[~HUAWEI] bgp 100
[*HUAWEI-bgp] group test external
[*HUAWEI-bgp] ipv6-family unicast
[*HUAWEI-bgp-af-ipv6] ext-community-change enable
[*HUAWEI-bgp-af-ipv6] peer test enable
[*HUAWEI-bgp-af-ipv6] peer test advertise-ext-community
[*HUAWEI-bgp-af-ipv6] peer test advertise ebgp link-bandwidth