Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - BGP AND MPLS CONFIGURATION GUIDE 2010-10-12 Configuration Manual page 188

JunosE 11.3.x BGP and MPLS Configuration Guide
exit-address-family
neighbor activate
152
The default setting is to exchange IPv4 addresses in unicast mode from the default
router.
This command takes effect immediately.
Examples
host1:vr1(config-router)#address-family ipv4 multicast
host1:vr1(config-router)#address-family vpnv4
host1:vr1(config-router)#address-family ipv4 unicast vrf vr2
Use the no version to disable the exchange of a type of prefix.
See address-family.
Use to exit Address Family Configuration mode and access Router Configuration mode.
Example
host1:vr1(config-router-af)#exit-address-family
There is no no version.
See exit-address-family.
Use to specify a peer with which routes of the current address family are exchanged.
A peer can be activated in more than one address family. By default, a peer is activated
only for the IPv4 unicast address family.
The peer must be created in unicast IPv4 or VPN IPv4 before you can activate it in
another address family.
If you specify a BGP peer group by using the peerGroupName argument, all the members
of the peer group inherit the characteristic configured with this command unless it is
overridden for a specific peer.
The address families that are actively exchanged over a BGP session are negotiated
when the session is established.
This command takes effect immediately. If dynamic capability negotiation was not
negotiated with the peer, the session is automatically bounced so that the exchanged
address families can be renegotiated in the open messages when the session comes
back up.
If dynamic capability negotiation was negotiated with the peer, BGP sends a capability
message to the peer to advertise or withdraw the multiprotocol capability for the
address family in which this command is issued. If a neighbor is activated, BGP also
sends the full contents of the BGP routing table of the newly activated address family.
Example
host1:vr1(config-router-af)#neighbor 192.168.1.158 activate
Copyright © 2010, Juniper Networks, Inc.