Configuration Example: BFD for OSPF Single-Hop Session for a LAG Interface
The following figure shows a BFD single-hop session that is configured for OSPFv2
for a LAG interface on two devices, Router 1 and Router 2. Micro-BFD is also configured
for the LAG interface. All LAG member links are directly connected between two session
endpoints.
The following configuration example enables BFD for OSPFv2 for LAG interface 1 on both Router 1 and Router 2, as illustrated in the preceding figure. The BFD session parameters are configured, and micro-BFD is enabled.
Router1# configure terminal Router1(config)# interface lag 1 Router1(config-lag-if-lg1)# ip address 10.0.0.1/24 Router1(config-lag-if-lg1)# bfd per-link Router1(config-lag-if-lg1)# exit Router1(config)# router ospf Router1(config-ospf-router)# bfd Router1(config-ospf-router)# bfd min-tx 290 min-rx 300 multiplier 3 Router1(config-ospf-router)# exit Router1(config)# interface lag 1 Router1(config-lag-if-lg1)# ip address 10.0.0.1/24 Router1(config-lag-if-lg1)# bfd per-link Router1(config-lag-if-lg1)# ip ospf bfd Router1(config-lag-if-lg1) ip ospf bfd min-tx 300 min-rx 290 multiplier 3 Router2# configure terminal Router2(config)# interface lag 1 Router2(config-lag-if-lg1)# ip address 10.0.0.2/24 Router2(config-lag-if-lg1)# bfd per-link Router2(config-lag-if-lg1)# exit Router2(config)# router ospf Router2(config-ospf-router)# bfd Router2(config-ospf-router)# bfd min-tx 290 min-rx 300 multiplier 3 Router2(config-ospf-router)# exit Router2(config)# interface lag 1 Router2(config-lag-if-lg1)# ip address 10.0.0.2/24 Router2(config-lag-if-lg1)# bfd per-link Router2(config-lag)# ip ospf bfd Router2(config-lag)# ip ospf bfd min-tx 300 min-rx 290 multiplier 3