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How To Debug OSPF Adjacency?

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TitleHow To Debug OSPF Adjacency?
Objective
How to debug an OSPF adjacency
Environment
  • N-Series
  • S-Series
Procedure
Add the following to the config. This can be done at any time and will not impact performance.
1.  configure
2.  set logging local console enable file enable
3.  debug ip ospf trace-interface vlan.0.1 
4.  debug ip ospf packet
5.  debug ip ospf adj 



 
Additional notes
See also, How to Debug Specific traffic on S-Series
Sample Display:
<165>Aug 10 14:32:49 Core_SSA-254 OSPF[1]Router global: OSPF: tx  HELLO v:2 l:24 aid:0.0.0.0 chk:0 aut:0 src:192.168.0.254 dst:224.0.0.5 to vlan.0.1
<165>Aug 10 14:33:19 Core_SSA-254 OSPF[1]Router global: OSPF: NBR change: IP 192.168.0.215 RtrId 192.168.0.215 DOWN
<165>Aug 10 14:33:29 Core_SSA-254 OSPF[1]Router global: OSPF: tx  HELLO v:2 l:20 aid:0.0.0.0 chk:0 aut:0 src:192.168.0.254 dst:224.0.0.5 to vlan.0.1
<165>Aug 10 14:33:32 Core_SSA-254 OSPF[1]Router global: OSPF: rcv HELLO v:2 l:20 aid:0.0.0.0 chk:cfcd aut:0 src:192.168.0.215 dst:224.0.0.5 vlan.0.1
<165>Aug 10 14:33:32 Core_SSA-254 OSPF[1]Router global: OSPF: NBR change: IP 192.168.0.215 RtrId 192.168.0.215 INIT
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: tx  HELLO v:2 l:24 aid:0.0.0.0 chk:0 aut:0 src:192.168.0.254 dst:224.0.0.5 to vlan.0.1
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: rcv DATABASE DESCRIPTION v:2 l:8 aid:0.0.0.0 chk:af35 aut:0 src:192.168.0.215 dst:192.168.0.254 vlan.0.1
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: NBR change: IP 192.168.0.215 RtrId 192.168.0.215 EXCHANGE_START
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: NBR change: IP 192.168.0.215 RtrId 192.168.0.215 EXCHANGE
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: tx  DATABASE DESCRIPTION v:2 l:88 aid:0.0.0.0 chk:0 aut:0 src:192.168.0.254 dst:192.168.0.215 to vlan.0.1
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: rcv LS REQUEST v:2 l:48 aid:0.0.0.0 chk:af0b aut:0 src:192.168.0.215 dst:192.168.0.254 vlan.0.1
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: rcv DATABASE DESCRIPTION v:2 l:28 aid:0.0.0.0 chk:af1e aut:0 src:192.168.0.215 dst:192.168.0.254 vlan.0.1
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: NBR change: IP 192.168.0.215 RtrId 192.168.0.215 FULL
<165>Aug 10 14:33:39 Core_SSA-254 OSPF[1]Router global: OSPF: NBR 192.168.0.215 transitioned from LOADING to FULL
 

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