H3C Technologies H3C S7500E Series Switches - Manual (Page 272)

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z Configure the detect multiplier as 7.
[SwitchA-Vlan-interface100] bfd detect-multiplier 7
z Configure the BFD authentication mode as plain-text authentication, and set the authentication
key to ibgpbfd.
[SwitchA-Vlan-interface100] bfd authentication-mode simple 1 ibgpbfd
[SwitchA-Vlan-interface100] quit
# Configure Switch C.
[SwitchC] bfd session init-mode active
[SwitchC] interface vlan-interface 101
[SwitchC-Vlan-interface101] bfd min-transmit-interval 500
[SwitchC-Vlan-interface101] bfd min-receive-interval 500
[SwitchC-Vlan-interface101] bfd detect-multiplier 7
[SwitchC-Vlan-interface101] bfd authentication-mode simple 1 ibgpbfd
[SwitchC-Vlan-interface101] return
Verify the configuration
The following operations are made on Switch C. Operations on Switch A are similar and are thus
omitted.
# Display detailed BFD session information.
<SwitchC> display bfd session verbose
Total Session Num: 1 Init Mode: Active
IP Session Working Under Ctrl Mode:
Local Discr: 17 Remote Discr: 13
Source IP: 3.0.2.2 Destination IP: 3.0.1.1
Session State: Up Interface: Vlan-interface101
Min Trans Inter: 500ms Act Trans Inter: 500ms
Min Recv Inter: 500ms Act Detect Inter: 3000ms
Recv Pkt Num: 57 Send Pkt Num: 53
Hold Time: 2200ms Connect Type: Indirect
Running Up for: 00:00:06 Auth mode: Simple
Protocol: BGP6
Diag Info: No Diagnostic
The above output shows that a BFD session is established between Switch A’s VLAN-interface 100
and Switch C’s VLAN-interface 101 and that BFD runs properly.
# Display BGP peer information on Switch C, and you can see that Switch C has established two BGP
neighborships with Switch A.
<SwitchC> 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