HP 4800G Series Configuration Manual page 1600

Because Switch A has removed its neighbor relationship with Switch B, no information is output.
<SwitchA> display bfd session
# Display OSPF neighbor information of Switch A.
Because Switch A has removed its neighbor relationship with Switch B, no information is output.
<SwitchA> display ospf peer
Configuring BFD for IS-IS
Network requirements
Switch A and Switch B are interconnected through a Layer-2 switch. BFD is enabled on the switch
interfaces. IS-IS is enabled on the switches that are reachable to each other at the network layer.
When the link between Switch B and the Layer-2 switch fails, BFD can quickly detect the failure
and notify IS-IS of the failure.
Figure 1-5 Network diagram for BFD configuration on an IS-IS link
Configuration procedure
1) Configure VLAN interfaces.
# Configure Switch A.
<SwitchA> system-view
[SwitchA] interface Vlan-interface 10
[SwitchA-Vlan-interface10] ip address 167.1.1.1 24
[SwitchA-Vlan-interface10] quit
# Configure Switch B.
<SwitchB> system-view
[SwitchB] interface Vlan-interface 10
[SwitchB-Vlan-interface10] ip address 167.1.1.2 24
[SwitchB-Vlan-interface10] quit
2) Configure IS-IS basic functions.
# Configure Switch A.
[SwitchA] isis
[SwitchA-isis-1] network-entity 10.0000.0000.0001.00
[SwitchA-isis-1] quit
[SwitchA] interface Vlan-interface 10
OSPF Process 1 with Router ID 192.168.1.40
Neighbor Brief Information
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