Cisco Cisco Packet Data Gateway (PDG)
Routing
▀ Bidirectional Forwarding Detection
▄ VPC-VSM System Administration Guide, StarOS Release 19
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Enable BFD Multihop Fall-over
A fall-over bfd multihop mhsess_name keyword in the Context Configuration mode ip route and ipv6 route commands
enables fall-over BFD functionality for the specified multihop session. The fall-over bfd option uses BFD to monitor
neighbor reachability and liveliness. When enabled it will tear down the session if BFD signals a failure.
enables fall-over BFD functionality for the specified multihop session. The fall-over bfd option uses BFD to monitor
neighbor reachability and liveliness. When enabled it will tear down the session if BFD signals a failure.
configure
context context_name
ip route { ip_address/ip_mask | ip_address ip_mask } { gateway_ip_address |
next-hop next_hop_ip_address | point-to-point | tunnel } egress_intrfc_name [
cost cost ] [ fall-over bfd multihop mhsess_name ] [ precedence precedence ] [
vrf
next-hop next_hop_ip_address | point-to-point | tunnel } egress_intrfc_name [
cost cost ] [ fall-over bfd multihop mhsess_name ] [ precedence precedence ] [
vrf
vrf_name
[ cost
value
] [ fall-over bfd multihop
mhsess_name
] [ precedence
precedence
] +
end
The ip route command now also allows you to add a static multihop BFD route.
ip route static multihop bfd mhbfd_sess_name local_endpt_ipaddr remote_endpt_ipaddr
Important:
SNMP traps are generated when BFD sessions go up and down (BFDSessUp and BFDSessDown).
ip route Command
configure
context context_name
ip route { ip_address/ip_mask | ip_address ip_mask } { gateway_ip_address |
next-hop next_hop_ip_address | point-to-point | tunnel } egress_intrfc_name [
cost cost ] [ fall-over bfd multihop mhsess_name ] [ precedence precedence ] [
vrf
next-hop next_hop_ip_address | point-to-point | tunnel } egress_intrfc_name [
cost cost ] [ fall-over bfd multihop mhsess_name ] [ precedence precedence ] [
vrf
vrf_name
[ cost
value
] [ fall-over bfd multihop
mhsess_name
] [ precedence
precedence
] +
end
The ip route command now also allows you to add a static multihop BFD route.
ip route static multihop bfd mhbfd_sess_name local_endpt_ipaddr
remote_endpt_ipaddr
remote_endpt_ipaddr
ipv6 route Command
configure
context context_name
ipv6 route ipv6_address/prefix_length { interface name | next-hop
ipv6_address interface name } [ cost cost] [ fall-over bfd multihop mhsess_name
] [ precedence precedence ] [ vrf vrf_name [ cost value ] [ fall-over bfd
multihop mhsess_name ] [ precedence precedence ]
ipv6_address interface name } [ cost cost] [ fall-over bfd multihop mhsess_name
] [ precedence precedence ] [ vrf vrf_name [ cost value ] [ fall-over bfd
multihop mhsess_name ] [ precedence precedence ]