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183

LD/RD SourceAddr DestAddr State Holdtime Interface

3/1 10.1.0.102 10.1.0.100 Up 1700ms vlan10

# Display routes destined for 120.1.1.0/24 on Switch A.

<SwitchA> display ip routing-table 120.1.1.0 verbose

Routing Table : Public

Summary Count : 1

Destination: 120.1.1.0/24

Protocol: ISIS Process ID: 1

Preference: 0 Cost: 2

IpPrecedence: QosLcId:

NextHop: 192.168.0.100 Interface: Vlan-interface10

BkNextHop: 0.0.0.0 BkInterface:

RelyNextHop: 0.0.0.0 Neighbor : 0.0.0.0

Tunnel ID: 0x0 Label: NULL

BKTunnel ID: 0x0 BKLabel: NULL

State: Active Adv Age: 00h58m10s

Tag: 0

The output shows that Switch A communicates with Switch B through VLAN-interface 10.

When the link over VLAN-interface 10 fails, BFD can quickly detect the failure.

# Display the BFD information on Switch A.

<SwitchA> display bfd session

Switch A has deleted the BFD session on VLAN-interface 10 to Switch B and displays no output.