Network requirements – H3C Technologies H3C S5560 Series Switches User Manual
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Summary Count : 0
The output shows that Switch A communicates with Switch B through VLAN-interface 10. Then the link
over VLAN-interface 10 fails.
# Display static routes on Switch A.
<SwitchA> display ip routing-table protocol static
Summary Count : 1
Static Routing table Status : <Active>
Summary Count : 1
Destination/Mask Proto Pre Cost NextHop Interface
120.1.1.0/24 Static 65 0 10.1.1.100 Vlan11
Static Routing table Status : <Inactive>
Summary Count : 0
The output shows that Switch A communicates with Switch B through VLAN-interface 11.
BFD for static routes configuration example (indirect next hop)
Network requirements
shows the network topology as follows:
•
Switch A has a route to interface Loopback 1 (2.2.2.9/32) on Switch B, with the output interface
VLAN-interface 10.
•
Switch B has a route to interface Loopback 1 (1.1.1.9/32) on Switch A, with the output interface
VLAN-interface 12.
•
Switch D has a route to 1.1.1.9/32, with the output interface VLAN-interface 10, and a route to
2.2.2.9/32, with the output interface VLAN-interface 12.
Configure the following:
•
Configure a static route to subnet 120.1.1.0/24 on Switch A.
•
Configure a static route to subnet 121.1.1.0/24 on Switch B.
•
Enable BFD for both routes.
•
Configure a static route to subnet 120.1.1.0/24 and a static route to subnet 121.1.1.0/24 on both
Switch C and Switch D.
When the link between Switch A and Switch B through Switch D fails, BFD can detect the failure
immediately. Switch A then communicates with Switch B through Switch C.