1110 BigIron RX Series Configuration Guide53-1001986-01Configuring BGP4+45NOTEEach address family configuration level allows you to access commands that apply to that particularaddress family only. To enable a feature in a particular address family, you must specify anyassociated commands for that feature in that particular address family. You cannot expect thefeature, which you may have configured in the BGP4 unicast address family, to work in the BGP4+unicast address family unless it is explicitly configured in the BGP4+ unicast address family.To exit from the IPv6 unicast address family configuration level, enter the following command.BigIron RX(config-bgp-ipv6u)# exit-address-familyBigIron RX(config-bgp)#Entering this command returns you to the global BGP configuration level.Configuring BGP4+Before enabling BGP4+ on a switch, you must enable the forwarding of IPv6 traffic on the switchusing the ipv6 unicast-routing command and enable IPv6 on at least one interface by configuringan IPv6 address or explicitly enabling IPv6 on that interface.NOTEYou are required to configure a router_id when running IPv6 only routing protocols.To configure BGP4+, you must do the following:• Enable BGP4+.• Configure BGP4+ neighbors using one of the following methods:• Add one neighbor at a time (neighbor uses global or site-local IPv6 address).• Add one neighbor at a time (neighbor uses a link-local IPv6 address).• Create a peer group and add neighbors individually.The following configuration tasks are optional:• Advertise the default route.• Import specified routes into BGP4+.• Redistribute prefixes into BGP4+.• Aggregate routes advertised to BGP4 neighbors.• Use route maps.Enabling BGP4+To enable BGP4+, enter commands such as the following.BigIron RX(config)# router bgpBGP: Please configure 'local-as' parameter in order to run BGP4.BigIron RX(config-bgp)# local-as 1000These commands enables the BGP4+ switch and configure the autonomous system (1000) inwhich your switch resides.Syntax: [no] router bgpTo disable BGP, enter the no form of this command.
