Network requirements – H3C Technologies H3C SR8800 User Manual

Page 33

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17

[RouterD] bfd echo-source-ip 4.4.4.4

[RouterD] ip ip-prefix abc index 10 permit 1.1.1.1 32

[RouterD] route-policy frr permit node 10

[RouterD-route-policy] if-match ip-prefix abc

[RouterD-route-policy] apply fast-reroute backup-interface GigabitEthernet 3/1/1

backup-nexthop 24.24.24.2

[RouterD-route-policy] quit

[RouterD] ip route-static fast-reroute route-policy frr

3.

Verify the configuration:
# Display route 4.4.4.4/32 on Router S to view the backup next hop information.

[RouterS] display ip routing-table 4.4.4.4 verbose

Routing Table : Public

Summary Count : 1

Destination: 4.4.4.4/32

Protocol: Static Process ID: 0

Preference: 60 Cost: 0

IpPrecedence: QosLcID:

NextHop: 13.13.13.2 Interface: GigabitEthernet3/1/2

BkNextHop: 12.12.12.2 BkInterface: GigabitEthernet3/1/1

RelyNextHop: 0.0.0.0 Neighbor : 0.0.0.0

Tunnel ID: 0x0 Label: NULL

State: Active Adv Age: 00h01m27s

Tag: 0

# Display route 1.1.1.1/32 on Router D to view the backup next hop information.

[RouterS] display ip routing-table 1.1.1.1 verbose

Routing Table : Public

Summary Count : 1

Destination: 1.1.1.1/32

Protocol: Static Process ID: 0

Preference: 60 Cost: 0

IpPrecedence: QosLcID:

NextHop: 13.13.13.1 Interface: GigabitEthernet3/1/2

BkNextHop: 24.24.24.2 BkInterface: GigabitEthernet3/1/1

RelyNextHop: 0.0.0.0 Neighbor : 0.0.0.0

Tunnel ID: 0x0 Label: NULL

State: Active Adv Age: 00h01m27s

Tag: 0

BFD for static routes configuration example (direct session)

Network requirements

As shown in

Figure 4

, configure a static route to subnet 120.1.1.0/24 on Router A and configure a static

route to subnet 121.1.1.0/24 on Router B. Enable BFD for both routes so that when the link between Router
A and Router B through the Layer 2 switch fails, BFD can detect the failure immediately and Router A and

Router B can communicate through Router C.

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