RE: OSPF Stuck in Condition

John,

GAURAV is correct 2 way is normal operation if the other router isn't the DR or BDR on an Ethernet segment. You can force this with three routers. Use one router set priority 0. Then use debug ip ospf events.
I find debugs helpful in understanding the states.

http://blog.ioshints.info/2008/10/troubleshooting-ospf-adjacencies.html

http://www.elemental.net/~lf/undoc/

http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a00800949f7.shtml

HTH,
Robert

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of GAURAV MADAN
Sent: Saturday, August 07, 2010 1:16 PM
To: Edward John
Cc: Taufik Kurniawan; Cisco certification; cisco_at_groupstudy.com
Subject: Re: OSPF Stuck in Condition

2 DROthers will always be in 2-WAY state with each other . Cant proceed after this .

On Sat, Aug 7, 2010 at 8:33 PM, Edward John <edwardjohn2020_at_googlemail.com> wrote:
> Read TCP IP Vol-1, Operation of OSPF, to get understanding..
>
> 1. OSPF stuck in ATTEMPT - Try with NBMA network (one side neighbor,
> and other side network command) 2. OSPF stuck in INIT - (change MTU
> both side interface) 3. OPSF stuck in 2-WAY - (When merge 2 broadcast
> domain where already DR & BDR presented - It will take bit long time
> to decide the DR & BDR for merged
> network)
> 4. OSPF stuck in EXSTART/EXCHANGE -
> 5. OSPF stuck in LOADING -
>
> basically I used to view 3,4,5 conditions, when forming neighborship
> in a broadcast network - with "show ip ospf neighbor" command..
>
> Experts, can you please verify this?
>
> Rgds,
> John
>
>
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Received on Sat Aug 07 2010 - 18:44:05 ART