To configure policy parameters within a peer template to be applied to a specific address family, use the address-family command in Peer Template Configuration mode. This command enters an Address Family Configuration mode within the peer template. Policy commands configured within this mode apply to the address family. The following commands can be added to a peer template in Address Family Configuration mode:
- activate
- advertisement-interval seconds
- default-originate
- filter-list as-path-list-number {in | out}
- maximum-prefix {maximum | unlimited} [threshold]
- next-hop-self
- prefix-list prefix-list-name {in | out}
- remove-private-as [all replace-as]
- route-map map-name {in | out}
- route-reflector-client
- send-community
The activate command is not available in Address-family IPv4 mode.
In Address-family L2VPN mode, only maximum-prefix, route-map, route-reflector-client, and send-community commands are available.
| Default | If an IPv6 peer inherits a template that specifies address-family IPv4 parameters, those parameters are ignored. |
| Format | address-family {ipv4 | ipv6 | l2vpn evpn} |
| Mode | Peer Template Config |
| Parameter | Description |
|---|---|
| ipv4 | Configure policy parameters to be applied to IPv4 routes. |
| ipv6 | Configure policy parameters to be applied to IPv6 routes. |
| l2vpn evpn | Configure policy parameters to be applied to L2VPN routes. |
Example: In the following example of the command, the peer template AGGR sets the keepalive timer to 3 seconds, the hold timer to 9 seconds, allows communities to be sent for both IPv4 and IPv6 routes, and configures different inbound and outbound route maps for IPv4 and IPv6. Two neighbors, 172.20.1.2 and 172.20.2.2, inherit these parameters from the template.
(R1) (Config)# router bgp 65000 (R1) (Config-router)# neighbor 172.20.1.2 remote-as 65001 (R1) (Config-router)# neighbor 172.20.2.2 remote-as 65001 (R1) (Config-router)# template peer AGGR (R1) (Config-rtr-tmplt)# timers 3 9 (R1) (Config-rtr-tmplt)# address-family ipv4 (R1) (Config-rtr-tmplt-af)# send-community (R1) (Config-rtr-tmplt-af)# route-map RM4-IN in (R1) (Config-rtr-tmplt-af)# route-map RM4-OUT out (R1) (Config-rtr-tmplt-af)# exit (R1) (Config-rtr-tmplt)# address-family ipv6 (R1) (Config-rtr-tmplt-af)# send-community (R1) (Config-rtr-tmplt-af)# route-map RM6-IN in (R1) (Config-rtr-tmplt-af)# route-map RM6-OUT out (R1) (Config-rtr-tmplt-af)# exit (R1) (Config-rtr-tmplt)# exit (R1) (Config-router)# neighbor 172.20.1.2 inherit peer AGGR (R1) (Config-router)# neighbor 172.20.2.2 inherit peer AGGR (R1) (Config-router)# address-family ipv6 (R1) (Config-router)# neighbor 172.20.1.2 activate (R1) (Config-router)# neighbor 172.20.2.2 activate
