Re: DR Election: Incase of a Priority Tie, Highest RID Wins -

From: Petr Lapukhov (petrsoft@gmail.com)
Date: Thu Jun 01 2006 - 15:34:04 ART


Godswill,

it's getting late in my timezone, so i'll just throw a little debug
output :))

I enable OSPF on SINGLE router on ethernet segment,
no neighbors alive:

After 40 seconds of wait time

"debug ip ospf events"

shows:

*May 18 13:38:17.394: OSPF: end of Wait on interface FastEthernet0/0.56
*May 18 13:38:17.394: OSPF: DR/BDR election on FastEthernet0/0.56
*May 18 13:38:17.394: OSPF: Elect BDR 151.10.5.5
*May 18 13:38:17.394: OSPF: Elect DR 151.10.5.5
*May 18 13:38:17.394: OSPF: Elect BDR 0.0.0.0
*May 18 13:38:17.394: OSPF: Elect DR 151.10.5.5
*May 18 13:38:17.394: DR: 151.10.5.5 (Id) BDR: none

So you see, DR is elected anyway, even if NO adjacency has been formed :)
After that, if second router will come online, it will quickly learn
available DR
from hello packets.

HTH
Petr



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