peer advertise-large-community (BGP-VPN instance IPv4 address family view) (group)

Function

The peer advertise-large-community command enables a device to advertise the Large-Community attribute to a BGP peer group.

The undo peer advertise-large-community command cancels the configuration.

By default, a device does not advertise the Large-Community attribute to its BGP peer group.

Format

peer group-name advertise-large-community

undo peer group-name advertise-large-community

Parameters

Parameter	Description	Value
group-name	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

group-name

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-labeled VPN instance IPv4 address family view, BGP-VPN instance IPv4 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 Large-Community attribute to its BGP peer group, run the peer advertise-large-community command. If the Large-Community attribute is advertised to a peer group, all the peer members in the group inherit this configuration. This simplifies the application of route-policies and facilitates route maintenance and management.

Prerequisites

Specific Large-Community values have been defined in a route-policy.

Example

# Enable a device to advertise the Large-Community attribute to a BGP peer group.

<HUAWEI> system-view
[~HUAWEI] ip vpn-instance vpna
[*HUAWEI-vpn-instance-vpna] ipv4-family
[*HUAWEI-vpn-instance-vpna-af-ipv4] route-distinguisher 100:1
[*HUAWEI-vpn-instance-vpna-af-ipv4] quit
[*HUAWEI-vpn-instance-vpna] quit
[*HUAWEI] bgp 100
[*HUAWEI-bgp] vpn-instance vpna
[*HUAWEI-bgp-instance-vpna] group test
[*HUAWEI-bgp-instance-vpna] quit
[*HUAWEI-bgp] ipv4-labeled-unicast vpn-instance vpna
[*HUAWEI-bgp-labeled-vpna] peer test enable
[*HUAWEI-bgp-labeled-vpna] peer test advertise-large-community
<HUAWEI> system-view
[~HUAWEI] ip vpn-instance vpna
[*HUAWEI-vpn-instance-vpna] ipv4-family
[*HUAWEI-vpn-instance-vpna-af-ipv4] route-distinguisher 100:1
[*HUAWEI-vpn-instance-vpna-af-ipv4] quit
[*HUAWEI-vpn-instance-vpna] quit
[*HUAWEI] bgp 100
[*HUAWEI-bgp] ipv4-family vpn-instance vpna
[*HUAWEI-bgp-vpna] group test
[*HUAWEI-bgp-vpna] peer test advertise-large-community