Dell PowerSwitch S4820T Configuration Guide for the S4820T System 9.14.1.0 - Page 167
Disabling BFD for BGP, ROUTER BGP mode
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9 Activate the neighbor in IPv6 address family. CONFIG-ROUTERBGPv6_ADDRESSFAMILY mode neighbor ipv6-address activate 10 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)#address-family ipv4 vrf vrf1 DellEMC(conf-router_bgp_af)#neighbor 10.1.1.2 remote-as 2 DellEMC(conf-router_bgp_af)#neighbor 10.1.1.2 no shutdown DellEMC(conf-router_bgp_af)#neighbor 20::2 remote-as 2 DellEMC(conf-router_bgp_af)#neighbor 20::2 no shutdown DellEMC(conf-router_bgp_af)#address-family ipv6 unicast vrf vrf1 DellEMC(conf-router_bgpv6_af)#neighbor 20::2 activate DellEMC(conf-router_bgpv6_af)#address-family ipv4 vrf vrf1 DellEMC(conf-router_bgp_af)#bfd all-neighbors DellEMC(conf-router_bgp_af)#exit DellEMC(conf-router_bgp)#show config ! router bgp 1 ! address-family ipv4 vrf vrf1 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 exit-address-family ! address-family ipv6 unicast vrf vrf1 neighbor 20::2 activate exit-address-family DellEMC(conf-router_bgp)# Disabling BFD for BGP You can disable BFD for BGP. To disable a BFD for BGP session with a specified neighbor, use the first command. To remove the disabled state of a BFD for BGP session with a specified neighbor, use the second command. The BGP link with the neighbor returns to normal operation and uses the BFD session parameters globally configured with the bfd allneighbors command or configured for the peer group to which the neighbor belongs. • Disable a BFD for BGP session with a specified neighbor. ROUTER BGP mode neighbor {ip-address | ipv6-address |peer-group-name} bfd disable • Remove the disabled state of a BFD for BGP session with a specified neighbor. ROUTER BGP mode no neighbor {ip-address | ipv6-address | peer-group-name} bfd disable Bidirectional Forwarding Detection (BFD) 167
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