H3C Technologies H3C SR8800 - Manual (Page 278)

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Hold Time: 2200ms Connect Type: Indirect
Running Up for: 00:00:06 Auth mode: Simple
Protocol: BGP
Diag Info: No Diagnostic
The above output shows that a BFD session is established between Router A’s GigabitEthernet
3/1/2 and Router C’s GigabitEthernet 3/1/1 and that BFD runs properly.
# Display BGP peer information on Router C, and you can see that Router C has established two
BGP neighborships with Router A.
<RouterC> display bgp peer
BGP local router ID : 1.1.1.1
Local AS number : 200
Total number of peers : 2 Peers in established state : 2
Peer AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State
2.0.1.1 200 7 10 0 0 00:01:05 Established
3.0.1.1 200 7 10 0 0 00:01:34 Established
# Display route 1.1.1.0/24 on Router C, and you can see that Router A and Router C
communicate through Router B.
<RouterC> display ip routing-table 1.1.1.0 24 verbose
Routing Table : Public
Summary Count : 2
Destination: 1.1.1.0/24
Protocol: BGP Process ID: 0
Preference: 0 Cost: 50
NextHop: 3.0.1.1 Interface: GigabitEthernet3/1/1
BkNextHop: 0.0.0.0 BkInterface:
RelyNextHop: 3.0.2.1 Neighbor : 3.0.1.1
Tunnel ID: 0x0 Label: NULL
State: Active Adv Age: 00h08m54s
Tag: 0
Destination: 1.1.1.0/24
Protocol: BGP Process ID: 0
Preference: 0 Cost: 100
NextHop: 2.0.1.1 Interface: GigabitEthernet3/1/2
BkNextHop: 0.0.0.0 BkInterface:
RelyNextHop: 2.0.2.1 Neighbor : 2.0.1.1
Tunnel ID: 0x0 Label: NULL
State: Invalid Adv Age: 00h08m54s
Tag: 0
The above output shows that Router C has two routes to reach network 1.1.1.0/24: Router
C<—>Router B<—>Router A, which is the currently active route; Router C<—>Router
D<—>Router A, which is the backup route.
# Enable BFD debugging on Router C.
<RouterC> debugging bfd scm