RE: OSPF priority and neighbor command

NMBA Network type send hello as unicast when we use NMBA we need to specify
nei statement what are the neig that will rec unicast.You issue this command
on DR no need to specify on both sides.
router ospf 1neighbor X
check the debug ip packet detail command
yes ip ospf pri 0 make the router out of election.
> From: ariemer_at_amnet.net.au
> To: ccielab_at_groupstudy.com
> Subject: RE: OSPF priority and neighbor command
> Date: Wed, 13 Jul 2011 10:41:30 +0800
>
> Further to this. Does this have something to do with the fact that the
> priority 0 command takes the spoke router out of the running for DR/BDR
> election?
>
>
>
> Hello's are not sent from the spoke until the spoke learns of the 'DR'?? In
> this case hello's must be initiated from the hub with the neighbor command.
> Is this correct?
>
>
>
> Cheers,
>
>
>
> -Aaron.
>
>
>
> From: Aaron Riemer [mailto:ariemer_at_amnet.net.au]
> Sent: Wednesday, 13 July 2011 10:28 AM
> To: 'GS CCIE'
> Subject: OSPF priority and neighbor command
>
>
>
> Hey guys,
>
>
>
> I am testing OSPF within an NBMA non-broadcast network. I ensure that the
> spokes do not become DR/BDR by setting the priority to 0 on the relevant
> frame relay spoke interface.
>
> What I have found is that with the priority set to '0' the router will not
> accept the 'neighbor x.x.x.x' command under the ospf process. (When I say
> accept I mean it is not visible within the configuration).
>
> This is a problem as unicast hello's are not sent to the hub and an
> adjacency does not form. I found that removing the 'ip ospf priority 0'
> command from the frame relay spoke interface would resolve the problem and
> the neighbor command would be accepted and adjacencies would form.
>
> I know there are ways around this (set neighbor command on hub) but I am
> just interested as to why this is occurring to help my understanding.
>
> Any comments greatly appreciated.
>
>
>
> Thanks,
>
>
>
> -Aaron.
>
>
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Received on Wed Jul 13 2011 - 09:03:23 ART