Reference Guide

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After you create a peer group, you can use any of the commands beginning with the keyword neighbor to configure

that peer group.

When you add a peer to a peer group, it inherits all the peer group’s configured parameters.

A neighbor cannot become part of a peer group if it has any of the following commands configured:

• neighbor advertisement-interval

• neighbor distribute-list out

• neighbor filter-list out

• neighbor next-hop-self

• neighbor route-map out

• neighbor route-reflector-client

• neighbor send-community

A neighbor may keep its configuration after it was added to a peer group if the neighbor’s configuration is more specific

than the peer group’s and if the neighbor’s configuration does not affect outgoing updates.

NOTE: When you configure a new set of BGP policies for a peer group,

always

reset the peer group by entering the

clear ip bgp peer-group peer-group-name command in EXEC Privilege mode.

To view the configuration, use the show config command in CONFIGURATION ROUTER BGP mode. When you create

a peer group, it is disabled (shutdown). The following example shows the creation of a peer group (zanzibar) (in bold).

Example of Viewing a Newly Created Peer Group

FTOS(conf-router_bgp)#neighbor zanzibar peer-group

FTOS(conf-router_bgp)#show conf

router bgp 45

bgp fast-external-fallover

bgp log-neighbor-changes

neighbor zanzibar peer-group

neighbor zanzibar shutdown

neighbor 10.1.1.1 remote-as 65535

neighbor 10.1.1.1 shutdown

neighbor 10.14.8.60 remote-as 18505

neighbor 10.14.8.60 no shutdown

FTOS(conf-router_bgp)#

To enable a peer group, use the neighbor peer-group-name no shutdown command in CONFIGURATION

ROUTER BGP mode (shown in bold).

Example of Enabling a Peer Group

FTOS(conf-router_bgp)#neighbor zanzibar no shutdown

FTOS(conf-router_bgp)#show config