The peer aigp command enables the AIGP capability for a BGP peer or peer group.
The undo peer aigp command disables the AIGP capability for a BGP peer or peer group.
By default, the AIGP capability is disabled for a BGP peer or peer group.
peer { group-name | ipv4-address | ipv6-address } aigp
undo peer { group-name | ipv4-address | ipv6-address } aigp
| Parameter | Description | Value |
|---|---|---|
| group-name | Name of a BGP 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. |
| ipv4-address | IPv4 address of a BGP peer. | The value is in dotted decimal notation. |
| ipv6-address | IPv6 address of a BGP peer. | The value is a 32-digit hexadecimal number, in the format of X:X:X:X:X:X:X:X. |
Usage Scenario
An AIGP administrative domain is a set of ASs in a common administrative domain. The AIGP attribute is an optional non-transitive BGP path attribute. The AIGP attribute enables BGP to select routes based on metrics in an AIGP administrative domain. As a result, all devices in the AIGP administrative domain can use the optimal routes to forward data.
After the peer aigp command is configured, a local device can receive BGP routes carrying the AIGP attribute from BGP peers or peer groups or send such routes to BGP peers or peer groups.
Prerequisites
The peer as-number command has been run to create BGP peers or BGP peer groups.
Precautions
If a device does not change the next hop of a route to itself, the device must not change the AIGP attribute value of the route.
BGP allows you to enable the AIGP capability for either a BGP peer or a BGP peer group. If a BGP peer with the AIGP capability joins a BGP peer group that does not have the AIGP capability, the BGP peer still retains the AIGP capability. If a BGP peer without the AIGP capability joins a BGP peer group that has the AIGP capability, the BGP peer inherits the AIGP capability of the BGP peer group. After a BGP peer inherits the AIGP capability of a BGP peer group, you can run the undo peer aigp command to delete the AIGP configuration from the BGP peer.