Administrator Guide

CONFIGURATION mode
bfd enable
2. Specify the AS number and enter ROUTER BGP configuration mode.
CONFIGURATION mode
router bgp as-number
3. Add a BGP neighbor or peer group in a remote AS.
CONFIG-ROUTERBGP mode
neighbor {ip-address | peer-group name} remote-as as-number
4. Enable the BGP neighbor.
CONFIG-ROUTERBGP mode
neighbor {ip-address | peer-group-name} no shutdown
5. Add a BGP neighbor or peer group in a remote AS.
CONFIG-ROUTERBGP mode
neighbor {ipv6-address | peer-group name} remote-as as-number
6. Enable the BGP neighbor.
CONFIG-ROUTERBGP mode
neighbor { ipv6-address | peer-group-name} no shutdown
7. To establish BFD sessions for IPv6 neighbors, specify the address family as IPv6.
CONFIG-ROUTERBGP mode
address-family ipv6 unicast
8. Activate the neighbor in IPv6 address family.
CONFIG-ROUTERBGPv6_ADDRESSFAMILY mode
neighbor ipv6-address activate
9. Configure parameters for a BFD session established with all neighbors discovered by BGP. Or establish a BFD session with a
specified BGP neighbor or peer group using the default BFD session parameters.
CONFIG-ROUTERBGP mode
bfd all-neighbors
DellEMC(conf)#router bgp 1
DellEMC(conf-router_bgp)#neighbor 10.1.1.2 remote-as 2
DellEMC(conf-router_bgp)#neighbor 10.1.1.2 no shutdown
DellEMC(conf-router_bgp)#neighbor 20::2 remote-as 2
DellEMC(conf-router_bgp)#neighbor 20::2 no shutdown
DellEMC(conf-router_bgp)#address-family ipv6 unicast
DellEMC(conf-router_bgpv6_af)#neighbor 20::2 activate
DellEMC(conf-router_bgpv6_af)#exit
DellEMC(conf-router_bgp)#bfd all-neighbors
DellEMC(conf-router_bgp)#show config
!
router bgp 1
neighbor 10.1.1.2 remote-as 2
neighbor 10.1.1.2 no shutdown
neighbor 20::2 remote-as 2
neighbor 20::2 no shutdown
bfd all-neighbors
!
address-family ipv6 unicast
neighbor 20::2 activate
exit-address-family
DellEMC(conf-router_bgp)#
Establishing Sessions with BGP Neighbors for Nondefault VRF
To establish sessions with either IPv6 or IPv4 BGP neighbors for nondefault VRFs, follow these steps:
1. Enable BFD globally.
CONFIGURATION mode
Bidirectional Forwarding Detection (BFD)
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