[nsp] ospf missing route issue

[Hani Mustafa]

Look at the "Forwarding Address" of the External LSA and see if its set to an address which you don't have an intra/inter area route to. I do not know the exact topology so I can't tell, but perhaps a race condition happens somewhere along the line.

~Hani Mustafa

* jlewis at lewis.org <jlewis at lewis.org> [2004-05-03 11:12:56 -0400]:

> I've got a recurring issue (every few weeks) where one of our routers
> (7206vxr NPE300) will be missing one or more OSPF routes.  In the 2 most
> recent cases, the missing routes have been from another 7206 on the same
> ethernet switch (same ospf area).  The route is for a subnet DSL customer.
> 
> In this case, the route we noticed missing was in that router's 'show ip
> ospf data' under Type-5 AS External Link States, but it was not in the
> routing table.  Other routes from the same advertising router were in the
> table.
> 
> clear ip ospf redi on the advertising router didn't help.  clear ip ospf
> process on the one missing the route did fix it.
> 
> IOS on the ADV router: c7200-js-mz.121-5.T15.bin
> IOS on the router missing the route: c7200-p-mz.122-14.S3.bin
> 
> I have around 1500 routes in OSPF.  Is that getting large for OSPF?
> 
> Anyone seen OSPF issues like this?
> 
> I know I'm a few minor revs behind in 12.1T and should upgrade that one.
> 122-14.S3 is also getting old, but the question is, 12.2.14S7 or
> 12.2.18Sn?
> 
> ----------------------------------------------------------------------
>  Jon Lewis *jlewis at lewis.org*|  I route
>  Senior Network Engineer     |  therefore you are
>  Atlantic Net                |
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