Function
The peer advertise-community command configures routers to advertise the community attributes to a peer or peer group.
The undo peer advertise-community command cancels the existing configuration.
By default, the community attribute is not advertised to any peer or peer group.
Format
peer { group-name | ipv4-address | ipv6-address } advertise-community
undo peer { group-name | ipv4-address | ipv6-address } advertise-community
Parameters
| Parameter | Description | Value |
|---|---|---|
| group-name | Specifies the name of the peer group. | The name is a string of 1 to 47 characters without any space. It is case-sensitive. |
| ipv4-address | Specifies the IPv4 address of the peer. | - |
| ipv6-address | Specifies the IPv6 address of the peer. | - |
NOTE: ipv4-address is valid only in the BGP view, BGP-IPv4 unicast address family view, BGP-IPv4 multicast address family view, BGP-IPv6 unicast address family view, BGP-VPNv4 address family view, and BGP-VPNv6 address family view, BGP-VPN-Target address family view, and BGP-VPN instance IPv4 address family view.
ipv6-address is valid only in the BGP-IPv6 unicast address family view and BGP-VPN instance IPv6 address family view.
Views
BGP view, BGP-IPv4 unicast address family view, BGP-VPN instance IPv4 address family view, BGP-VPNv4 address family view, BGP-IPv6 unicast address family view, BGP-VPN instance IPv6 address family view, BGP-VPNv6 address family view, BGP-IPv4 multicast address family view, BGP-VPN-Target address family view
Only the AntiDDoS8000 series support BGP-VPNv6 address family view.
Usage Guidelines
Usage Scenario
The peer advertise-community command is used to configure a device to advertise a community attribute to its peer or peer group. If a device advertises a community attribute to its peer group, all the members of the peer group will inherit the community attribute. This simplifies the application of routing policies and facilitates route maintenance and management.
Prerequisites
A specific community attribute has been defined by in a routing policy.
Configuration Impact
If the peer advertise-community command is run to configure a device to advertise a community attribute to its peer group, all the members of the peer group will inherit the community attribute.
Precautions
To configure IPv6 provider edge (6PE), specify the address of the peer as an IPv4 unicast address in the IPv6 unicast address family view.