RE: Neighbor command Jeff Doyle Pg557-558

From: Jason Aarons (jaarons@xxxxxxxxxxx)
Date: Wed Jul 28 1999 - 22:00:37 GMT-3


   
I just finished a 2 day OSPF course (onsite) from ARC/GNK in which the
instructor (whom had a wealth of hands on) said everytime he had ever tried
the neighbor command it has never worked.

He suggested keeping frame-relay interfaces point-to-point or
point-to-multipoint (in which they don't have a DR/BDR). He did give a
strong argument for point-to-multipoint which I had never used before.

Jason

----Original Message Follows----
From: "Richardson, Cheryl" <cheryl.richardson@lmco.com>
Reply-To: "Richardson, Cheryl" <cheryl.richardson@lmco.com>
I checked the config guide and it shows the default priority as 0.

neighbor ip-address [priority number] [poll-interval seconds]
no neighbor ip-address [priority number] [poll-interval seconds]

Syntax Description

  ip-address
           Interface IP address of the neighbor.
  number
           (Optional) 8-bit number indicating the router priority value of
the nonbroadcast neighbor associated with the IP
           address specified. The default is 0.
  seconds
           (Optional) Unsigned integer value reflecting the poll interval.
RFC 1247 recommends that this value be much larger
           than the hello interval. The default is 2 minutes (120 seconds).

Cheryl Richardson

> -----Original Message-----
> From: Ron Trunk [SMTP:rtrunk@xatlantic.com]
> Sent: Wednesday, July 28, 1999 12:20 PM
> To: Chuah Eng Wee; ccielab@groupstudy.com
> Subject: Re: Neighbor command Jeff Doyle Pg557-558
>
> The default priority is 1, not 0
>
> Ron
>
> -----Original Message-----
> From: Chuah Eng Wee < chuahew@cyberway.com.sg
> <mailto:chuahew@cyberway.com.sg>>
> To: ccielab@groupstudy.com <mailto:ccielab@groupstudy.com> <
> ccielab@groupstudy.com <mailto:ccielab@groupstudy.com>>
> Date: Wednesday, July 28, 1999 11:44 AM
> Subject: Neighbor command Jeff Doyle Pg557-558
>
>
> Hi pple,
>
> I tried out the config in Jeff Doyle's book pg 557-558. But I have
> some problem with the neighbor command.
>
> Hub router
> > router ospf 10
> > network ......
> > neighbor spokeA-ip ### according to documentation, if not
> specified =0
> > neighbor spkeB-ip ### according to documentation, if not specified
> =0
>
> >
> > At spokeA,
> > router ospf 10
> > neigh Hub-ip priority 10 ## to make the hub router the DR
> >
> > At spokeB,
> > neigh Hub-ip priority 10 ## to make the hub router the DR
>
> >
> I read from the documentation and Jeff's book that if priority for
> the neighbor command is not specified, it'll
> be priority 0, which implies it will not participate in DR/BDR
> election. WIth the above config,
> the hub router should become DR since the spoke router cannot
> participate in DR/BDR election.
>
> At the spoke, the configuration will change the priority to 1 after
> a while even when I keyed in the priority to be 10. The same thing
happens
> to the hub. WHy ?? If we can't change the priority, then why have the
> option. I am using 11.2(18)
>
> I know that we can set ip ospf priority at the interface. I just
> wonder why the neighbor command behave so strangely.
>
>
> THanks
> ENg Wee
>
>



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