[c-nsp] Troubleshooting OSPFv3 "Neighbor Down: Too many retransmits"

[Devon True]

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On 3/3/2011 12:32 PM, Brian Spade wrote:
> You might be hitting bug CSCsx54082.  Neighbors end up in an DBD
> exchange loop.  Is CPU utilization increasing when the neighbors are in
> this condition? 

No issue with cpu utilization.

While performing "sh ipv6 ospf 1 retransmission-list g3/2" repeatedly,
there was a LS ID that was always present. I digged into it and the
maxage was high.

# sh ipv6 ospf 1 database prefix 54272
            OSPFv3 Router with ID (x.x.x.x) (Process ID 1)
                Intra Area Prefix Link States (Area 0)
  LS age: MAXAGE(663649)
  LS Type: Intra-Area-Prefix-LSA

I restarted the ospfv3 process and the issue has disappeared. I have a
TAC case open and they are investigating the issue in their lab.

- --
Devon
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