From: ccie anees (ccieanees@yahoo.com)
Date: Tue Jan 02 2007 - 17:21:20 ART
One more thing have you noticed when you configure neighbor X.X.X.X priority 0
and check in show run, it will show only neighbor X.X.X.X
Configuring neighbor 1.1.1.1 defaults to neighbor 1.1.1.1 priority 0. I don't think this command will help in stopping spokes in participating DR election.
Thanks,
Anees.
Bit Gossip <bit.gossip@chello.nl> wrote:
So can we summarize it like this?
- neighbor x.x.x.x [priority p] can be used only for 'ip ospf network
non-broadcast' because in point-to-multipoint non-broadcast' there is no
DR/BDR
- it has no effect to set the real priority: the priority set on the
interface always override the neighbor priority
- the only effect is with 'neighbor x.x.x.x priority 0' to prevent
x.x.x.x to become DR
Thanks,
Luca
On Tue, 2007-01-02 at 04:54, Thiago Vazquez wrote:
> When the router first starts up, it sends only hello packets to those routers with nonzero priority, that is, routers that are eligible to become designated routers (DRs) and backup designated routers (BDRs). After the DR and BDR are selected, DR and BDR will then start sending hello packets to all neighbors in order to form adjacencies.
>
> http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cr/hirp_r/rte_osph.htm#wp1001398
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Ronnie Angello
> Sent: 02 January 2007 03:15
> To: Bit Gossip
> Cc: groupstudy
> Subject: Re: OSPF neighbor priority
>
>
> The default is 0, but you must configure the neighbor's interface with
> priority 0 to keep the router from participating in DR election. I'm with
> you...what's the use of configuring the priority with the neighbor command
> if you have to configure it on the interface anyway?
>
> On 1/1/07, Bit Gossip wrote:
> >
> > I am very confused on the matter after the following lab setup:
> >
> > interface Serial0/0
> > ip address 192.168.192.6 255.255.255.0
> > ip ospf network non-broadcast
> > ...
> > router ospf 6
> > neighbor 192.168.192.3
> > ...
> >
> > According to doc, default priority for the neighbor statement is 0 so
> > 192.168.192.3 should have priority 0; instead:
> >
> > r6#show ip ospf neighbor 192.168.118.3
> > Neighbor 192.168.118.3, interface address 192.168.192.3
> > In the area 0 via interface Serial0/0
> > Neighbor priority is 1 (configured 0), State is FULL, 18 state
> >
> > Where is this priority 1 coming from? Maybe the default priority applied
> > at the interface of 192.168.192.3?
> >
> > But this is not logical because the neighbor statement, being more
> > specific should prevail over the interface priority....
> >
> > Thanks,
> > Luca.
> >
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