Configuration Example: BFD for OSPF Single-Hop Session for a VE Interface
The following figure shows a BFD single-hop session that is configured for OSPFv2
for a Virtual Ethernet (VE) interface on a LAG on two devices, Router 1 and Router
2. A single-hop BFD session is configured and micro-BFD is enabled.
The following configuration example enables BFD for OSPFv2 for a VE interface on a LAG on both Router 1 and Router 2, as illustrated in the preceding figure. The BFD session parameters are configured, and micro-BFD is enabled for the LAG interface.
Router1# configure terminal Router1(config)# vlan 10 Router1(config-vlan-10)# tag lag 1 Router1(config-vlan-10)# interface ve 10 Router1(config-vlan-10)# exit Router1(config)# interface lag 1 Router1(config-lag-if-lg1)# bfd per-link Router1(config-lag-if-lg1)# exit Router1(config)# interface ve 10 Router1(config-vif-10)# ip address 10.0.0.1/24 Router1(config-vif-10)# exit Router1(config)# router ospf Router1(config-ospf-router)# bfd Router1(config-ospf-router)# bfd min-tx 300 min-rx 290 multiplier 3 Router1(config-ospf-router)# exit Router1(config)# interface lag 1 Router1(config-lag-if-lg1)# bfd per-link Router1(config-lag-if-lg1)exit Router1(config)# interface ve 10 Router1(config-vif-10)# ip address 10.0.0.1/24 Router1(config-vif-10)# ip ospf bfd Router1(config-vif-10) ip ospf bfd min-tx 290 min-rx 300 multiplier 3 Router2# configure terminal Router2(config)# vlan 10 Router2(config-vlan-10)# tag lag 1 Router2(config-vlan-10)# interface ve 10 Router2(config-vlan-10)# exit Router2(config)# interface lag 1 Router2(config-lag-if-lg1)# bfd per-link Router2(config-lag-if-lg1)# exit Router2(config)# interface ve 10 Router2(config-vif-10)# ip address 10.0.0.2/24 Router2(config-vif-10)# exit Router2(config)# router ospf Router2(config-ospf-router)# bfd Router2(config-ospf-router)# bfd min-tx 300 min-rx 290 multiplier 3 Router2(config-ospf-router)# exit Router2(config)# interface lag 1 Router2(config-lag-if-lg1)# bfd per-link Router2(config-lag-if-lg1)exit Router2(config)# interface ve 10 Router2(config-vif-10)# ip address 10.0.0.2/24 Router2(config-vif-10)# ip ospf bfd Router2(config-vif-10) ip ospf bfd min-tx 290 min-rx 300 multiplier 3