Neighbor state remains in exchange or loading

[Ondrej Zajicek]

On Wed, Dec 09, 2009 at 10:49:43AM +0100, Vonlanthen, Elmar wrote:
> Here I have the problem again. One neighbor state remains in state
> "loading". I activated some debug messages.
> 
> 2009-12-09 10:23:54 chgut1fw01 bird: Requesting 109th LSA: Type: 1, ID:
> 172.16.101.1, RT: 172.16.101.1, SN: 0x7fffffff, Age 3600
> 2009-12-09 10:23:54 chgut1fw01 bird: Update Type: 1 ID: 172.16.101.1 RT:
> 172.16.101.1, Sn: 0x80000003 Age: 289, Sum: 19615
...
> 2009-12-09 10:24:44 chgut1fw01 bird: Requesting 109th LSA: Type: 1, ID:
> 172.16.101.1, RT: 172.16.101.1, SN: 0x7fffffff, Age 3600
> 
> As you can see, the sequence numbers don't match. Is that the problem?

These messages are useful to locate the problem. The problem is not
really a sequence number mismatch (this might happen and it is OK), but
some subtle bugs in premature aging of LSAs (which happen if router
receives an LSA created by its previous instance before restart). I
found these bugs several weeks ago but i didn't know that they may cause
such problems. I hope i will fix these bugs soon.

-- 
Elen sila lumenn' omentielvo

Ondrej 'SanTiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
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