3Com S7906E Configuration Manual page 766

Total Session Num: 1
Session Working Under Ctrl Mode:
LD/RD SourceAddr
5/3 167.1.1.1
# Display the IS-IS neighbor information of Switch A.
<SwitchA> display isis peer 1
System Id: 0000.0000.0002
Interface: vlan10
State: Up HoldTime: 24s
System Id: 0000.0000.0002
Interface: vlan10
State: Up HoldTime: 29s
# Enable BFD debugging on Switch A.
<SwitchA> debugging bfd scm
<SwitchA> debugging bfd event
<SwitchA> debugging isis event bfd
<SwitchA> terminal debugging
# When the link between Switch B and the Layer-2 switch fails, BFD can quickly detect the failure.
#Aug 8 14:54:05:362 2008 SwitchA IFNET/4/INTERFACE UPDOWN:
Trap 1.3.6.1.6.3.1.1.5.3<linkDown>: Interface 983041 is Down, ifAdminStatus is
1, ifOperStatus is 2
#Aug 8 14:54:05:363 2008 SwitchA ISIS/4/ADJ_CHANGE:TrapID(1.3.6.1.2.1.138.0.17<
isisAdjacencyChange>), ISIS Level-2 Adjencency IN Circuit-983041 State Change.
#Aug 8 14:54:05:364 2008 SwitchA ISIS/4/ADJ_CHANGE:TrapID(1.3.6.1.2.1.138.0.17<
isisAdjacencyChange>), ISIS Level-1 Adjencency IN Circuit-983041 State Change.
%Aug 8 14:54:05:365 2008 SwitchA IFNET/4/LINK UPDOWN:
vlan10: link status is DOWN
%Aug 8 14:54:05:366 2008 SwitchA IFNET/4/UPDOWN:
Line protocol on the interface GigabitEthernet2/0/1 is DOWN
%Aug 8 14:54:05:367 2008 SwitchA ISIS/4/ADJLOG:ISIS-1-ADJCHANGE: Adjacency To 0
000.0000.0002 (vlan10) DOWN, Level-2 Circuit Down.
%Aug 8 14:54:05:367 2008 SwitchA ISIS/4/ADJLOG:ISIS-1-ADJCHANGE: Adjacency To 0
000.0000.0002 (vlan10) DOWN, Level-2 Adjacency clear.
%Aug 8 14:54:05:368 2008 SwitchA ISIS/4/ADJLOG:ISIS-1-ADJCHANGE: Adjacency To 0
000.0000.0002 (vlan10) DOWN, Level-1 Circuit Down.
%Aug 8 14:54:05:369 2008 SwitchA ISIS/4/ADJLOG:ISIS-1-ADJCHANGE: Adjacency To 0
000.0000.0002 (vlan10) DOWN, Level-1 Adjacency clear.
*Aug 8 14:54:05:370 2008 SwitchA ISIS/6/ISIS:
ISIS-1-BFD: Success to send msg. Msg type 1 delete session. IfPhyIndex: 5 ,DstI
PAddr: 192.168.0.100 , SrcIPAddr:192.168.0.102. NeighborType:Level-2.
*Aug 8 14:54:05:370 2008 SwitchA ISIS/6/ISIS:
ISIS-1-BFD: Success to send msg. Msg type 1 delete session. IfPhyIndex: 5 ,DstI
PAddr: 192.168.0.100 , SrcIPAddr:192.168.0.102. NeighborType:Level-1.
# Display the BFD information of Switch A. You can see that Switch A has removed its neighbor
relationship with Switch B and therefore no information is output.
Init Mode: Active
DestAddr State Holdtime Interface
167.1.1.2 Up
Circuit Id: 0000.0000.0001.01
Type: L1(L1L2)
Circuit Id: 0000.0000.0001.01
Type: L2(L1L2)
1-55
1900ms vlan10
PRI: 64
PRI: 64