H3C Technologies H3C SR8800 - Manual (Page 357)

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RelayNextHop : :: Tag : 0H
Neighbor : :: ProcessID : 0
Interface : GigabitEthernet3/1/2 Protocol : ISISv6
State : Invalid Adv Cost : 30
Tunnel ID : 0x0 Label : NULL
Age : 4515sec
# Enable BFD debugging on Router A.
<RouterA> debugging bfd scm
<RouterA> debugging bfd event
<RouterA> debugging isis event bfd
<RouterA> terminal debugging
# When the link between Router B and the Layer-2 switch fails, BFD can quickly detect the failure.
#Aug 8 14:54:05:362 2009 RouterA 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 2009 RouterA
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 RouterA
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 2009 RouterA IFNET/4/LINK UPDOWN: GigabitEthernet3/1/1: link
status is DOWN
%Aug 8 14:54:05:366 2008 RouterA IFNET/4/UPDOWN: Line protocol on the interface
GigabitEthernet3/1/1 is DOWN
%Aug 8 14:54:05:367 2009 RouterA ISIS/4/ADJLOG:ISIS-1-ADJCHANGE: Adjacency To
0000.0000.0002 (GE3/1/1) DOWN, Level-2 Circuit Down.
%Aug 8 14:54:05:367 2009 RouterA ISIS/4/ADJLOG:ISIS-1-ADJCHANGE: Adjacency To
0000.0000.0002 (GE3/1/1) DOWN, Level-2 Adjacency clear.
%Aug 8 14:54:05:368 2009 RouterA ISIS/4/ADJLOG:ISIS-1-ADJCHANGE: Adjacency To
0000.0000.0002 (GE3/1/1) DOWN, Level-1 Circuit Down.
%Aug 8 14:54:05:369 2009 RouterA ISIS/4/ADJLOG:ISIS-1-ADJCHANGE: Adjacency To
0000.0000.0002 (GE3/1/1) DOWN, Level-1 Adjacency clear.
*Aug 8 14:54:05:369 2009 RouterA ISIS/6/ISIS: ISIS-1-BFD: Recieve BFD session down .
Type 0. DstIPAddr: FE80::20F:FF:FE00:1200 , SrcIPAddr: FE80::20F:FF:FE00:1202
*Aug 8 14:54:05:370 2009 RouterA ISIS/6/ISIS: ISIS-1-BFD: Success to send msg. Msg
type 1 delete session. IfPhyIndex: 5 ,DstIPAddr: FE80::20F:FF:FE00:1200 , SrcIPAddr:
FE80::20F:FF:FE00:1202 . NeighborType: Level-1.
# Display the BFD information of Router A. You can see that Router A has removed its neighbor
relationship with Router B and therefore no information is output.
<RouterA> display bfd session
# Display route 2001:4::0/64 on Router A, and you can see that Router A and Router B
communicate through Router C.
<RouterA> display ipv6 routing-table 2001:4::0 64 verbose
Routing Table :
Summary Count : 1
Destination : 2001:4::0 PrefixLength : 64
NextHop : 2001:2::2 Preference : 15
RelayNextHop : :: Tag : 0H