From: Jonathan Greenwood II (gwood83@gmail.com)
Date: Mon Sep 08 2008 - 00:23:39 ART
Ahh good one Andy everyday we learn something. I thought the same as well.
R/
Jonathan
On Sun, Sep 7, 2008 at 7:59 PM, andy <andy@cloud9.net> wrote:
> I did a little looking and it seems that:
>
> From "CiscoR OSPF Command and Configuration Handbook (CCIE Professional
> Development)"
>
> Neighbor ospf priority lowest wins (section 11-5)
>
> Interface ospf priority highest wins (section 19-8)
>
> This was news to me. I always thought highest won.
>
> Andy
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Jonathan Greenwood II
> Sent: Sunday, September 07, 2008 9:56 PM
> To: Alan Ewer
> Cc: Cisco certification
> Subject: Re: OSPF and Priorities
>
> How is it that i cannot get this command to set the DR
> (ie the priority) from a neighbour.. ?
>
>
> Hmm I just labbed it up. When I initially clear the proccess on R1 it
> shows
> the priority information being exchanged
>
> Neighbor ID Pri State Dead Time Address Interface
> N/A 100 ATTEMPT/DROTHER 00:01:53 1.1.1.2
> FastEthernet00
>
> But once the state is has established it shows as Priority 1
>
> Neighbor ID Pri State Dead Time Address Interface
> 150.20.2.2 1 FULL/DR 00:01:59 1.1.1.2
> FastEthernet00
>
> Good question though I have to play with it a little more or read something
> about it more. I agree with you on: R2's default priority of 1 should be
> over-ruled by the "suggested priority
> of 100
>
> Jonathan
>
>
>
>
> On Sun, Sep 7, 2008 at 6:17 PM, Alan Ewer <acewer64@gmail.com> wrote:
>
> > Hi All this is a bit of a picky question...here goes..
> > OSPF will use the DR with the highest priority right..
> > this can be set on an interface using the "ip ospf priority 100" command
> > ...all good...no problem
> >
> > however the command neighbor 1.2.3.4 priority 100 is to set a neighbours
> > priority to 100 (if it has a lesser priority set..)
> > The neighbor assesses the priority in the incoming hello and the
> configured
> > and the highest priority wins ...Am I right so far..
> >
> > How is it that i cannot get this command to set the DR
> > (ie the priority) from a neighbour.. ?
> >
> > Ie if R1 and R2 are configured as NBMA.
> > R1 is 1.1.1.1 and R2 is 1.1.1.2
> >
> > I want R2 to be the DR but am not permitted to set a priority. I should
> be
> > able to set R1 up as follows:
> > ==================
> > router ospf 1
> > nei 1.1.1.2 priority 100
> > ====================
> > R2's default priority of 1 should be over-ruled by the "suggested
> priority
> > of 100
> >
> > What am I missing here ??
> >
> > Regds
> > Alan E
> > Australia
> >
> >
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