After verifying my thoughts with referrences I am now confident OSPF does
not in any way use split-horizon. I was a little leary to be absolutely sure
right away, since there are often nuances that exist.
Split-horizon, Poison Reverse, and Hold down timers were created to overcome
loops caused by the way Distance-vector protocols converge.
>>>Brian
>From: "Maness, Drew" <[EMAIL PROTECTED]>
>Reply-To: "Maness, Drew" <[EMAIL PROTECTED]>
>To: "'Z'" <[EMAIL PROTECTED]>, Brian <[EMAIL PROTECTED]>,
>[EMAIL PROTECTED]
>Subject: RE: FR + Poison Reverse...
>Date: Tue, 27 Feb 2001 08:36:57 -0800
>
>OSPF does use Split horizon. I don't think OSPF uses PR because PR sets
>the
>route to infinity and I'm not sure what an ' infinity' cost would mean in
>OSPF.
>
>-----Original Message-----
>From: Z [mailto:[EMAIL PROTECTED]]
>Sent: Tuesday, February 27, 2001 12:47 AM
>To: Brian; [EMAIL PROTECTED]
>Subject: Re: FR + Poison Reverse...
>
>
>But I thought that I'd seen or heard of using split horizon with
>OSPF...maybe I'm thinking of Frame Relay...long day I guess...
>
>************************************************************
>This has been an Eyez Only streaming e-mail broadcast...We are watching.
>
>NetEyez ~ CCNP, CCDA
>
>----- Original Message -----
>From: "Brian" <[EMAIL PROTECTED]>
>To: "Z" <[EMAIL PROTECTED]>
>Cc: <[EMAIL PROTECTED]>
>Sent: Tuesday, February 27, 2001 1:16 AM
>Subject: Re: FR + Poison Reverse...
>
>
> >
> >
> > split horizon and PR are both associated with distance vector protocols,
> > OSPF is a link state protocol.
> >
> > Brian
> > On Mon, 26 Feb 2001, Z wrote:
> >
> > > Hey Group,
> > > I recently pondered something while at work and nobody could give
>me
>a
> > > strait answer. Actually I feel a little embarrassed asking this due to
>me
> > > being an NP and I feel like I should know this. Guess this type of
>thing
> > > doesn't come up much around me. Question is: Can poison reverse (PR)
>be
>used
> > > with OSPF? I know split horizon is used with it but I just cant see
>why/how
> > > poison reverse would. My definition of PR is that it sets the link to
>the
> > > max hop count and deems it unreachable, hence the term poison. I can't
>see
> > > how this would work with OSPF because it doesn't use a hop count.
>Maybe
>I'm
> > > confused about PR. Does it set the link to the highest metric, and not
>hop
> > > count? Maybe I'm just used to hearing about PR in discussions of RIP
>that
> > > I'm assuming it set the hop count to the highest and has nothing to do
>with
> > > metric. Any clarity would help, thanks all...
> > >
> > > ...sorry for the rambling...
> > >
> > > ************************************************************
> > > This has been an Eyez Only streaming e-mail broadcast...We are
>watching.
> > >
> > > NetEyez ~ CCNP, CCDA
> > >
> > >
> > >
> > > _________________________________
> > > FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
> > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> > >
> >
> >
> > -----------------------------------------------
> > I'm buying / selling used CISCO gear!!
> > email me for a quote
> >
> > Brian Feeny,CCDP,CCNP+VAS Scarlett Parria
> > [EMAIL PROTECTED] [EMAIL PROTECTED]
> > 318-222-2638 x 109 318-222-2638 x 101
> >
> > Netjam, LLC http://www.netjam.net
> > 1401 Oden St.
> > Suite 18
> > Shreveport, LA 71104
> > Fax 318-221-6612
> >
> >
>
>_________________________________
>FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
>
>_________________________________
>FAQ, list archives, and subscription info:
>http://www.groupstudy.com/list/cisco.html
>Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com
_________________________________
FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
