HP 4800G Series Configuration Manual page 1599

LD/RD SourceAddr
3/1 10.1.0.102
# Display OSPF neighbor information of Switch A.
<SwitchA> display ospf peer
OSPF Process 1 with Router ID 192.168.1.40
Area: 0.0.0.1
Router ID Address
10.1.0.102 10.1.0.100
# Enable BFD debugging on Switch A.
<SwitchA> debugging bfd scm
<SwitchA> debugging bfd event
<SwitchA> debugging ospf event
<SwitchA> terminal debugging
# When the link between Switch B and the Layer 2 switch fails, you can see that Switch A can quickly
detect the changes on Switch B.
%Nov 12 18:34:48:823 2005 SwitchA BFD/5/LOG: Sess[10.1.0.102/10.1.0.100, vlan10], Sta :
UP->DOWN, Diag: 1
%Nov 12 18:34:48:824 2005 SwitchA RM/4/RMLOG:OSPF-NBRCHANGE: Process 1, Neighbour 10.1.0.102
(vlan10) from Full to Down
*0.50673825 SwitchA BFD/8/SCM:Sess[10.1.0.102/10.1.0.100, vlan10],Oper: Reset
*0.50673825 SwitchA BFD/8/EVENT:Send sess-down Msg, [Src:10.1.0.102, Dst:10.1.0.100, vlan10]
Protocol: OSPF
*0.50673826 SwitchA RM/7/RMDEBUG:OSPF-BFD: Message Type rcv BFD down, Connect Type
direct-connect, Src IP Address 10.1.0.102, Src IFIndex 5, Dst IP Address 10.1.0.100
*0.50673827 SwitchA RM/7/RMDEBUG:OSPF-BFD: Message Type delete session, Connect Type
direct-connect, Src IP Address 10.1.0.102, Src IFIndex 5, Dst IP Address 10.1.0.100
OSPF 1: Nbr 10.1.0.100 Rcv KillNbr State Full -> Down.
*0.50673829 SwitchA BFD/8/EVENT:Receive Delete-sess, [Src:10.1.0.102, Dst:10.1.0.100,
vlan10], Direct, Proto:OSPF
*0.50673830 SwitchA
application(OSPF)
*0.50673831 SwitchA
session[10.1.0.102/10.1.0.100, vlan10]
*0.50673831 SwitchA BFD/8/SCM:Sess[10.1.0.102/10.1.0.100, vlan10], Oper: Delete
*0.50673832 SwitchA BFD/8/SCM:Delete send-packet timer
*0.50673833 SwitchA BFD/8/SCM:Delete session entry
*0.50673833 SwitchA BFD/8/SCM:Delete session from IP hash table
*0.50673834 SwitchA BFD/8/SCM:Delete session from bfd interface
*0.50673834 SwitchA BFD/8/SCM:No session under bfd-int[vlan10] with default configuration,
delete bfd-if
*0.50673835 SwitchA BFD/8/SCM:Bfd-if[vlan10], Oper: Delete
*0.50673840 SwitchA BFD/8/SCM:No bfd session exists, stop receiving any bfd packets
# Display BFD information of Switch A.
DestAddr
10.1.0.100
Neighbor Brief Information
Pri Dead-Time Interface
1 31
BFD/8/SCM:Sess[10.1.0.102/10.1.0.100,
BFD/8/SCM:No
1-14
State Holdtime Interface
Up 1700ms vlan10
State
vlan10 Full/DR
vlan10],
application in
Oper: Del
session, delete