From: Thomas Larus (tlarus@cox.net)
Date: Fri Oct 03 2003 - 20:30:38 GMT-3
I think that's what it amounts to. Still, I keep waiting for someone to
chime in with some point we have not yet considered, or some weird
hypothetical situation.
----- Original Message -----
From: "Peng Zheng" <zpnist@yahoo.com>
To: "Thomas Larus" <tlarus@cox.net>
Cc: <ccielab@groupstudy.com>
Sent: Friday, October 03, 2003 7:12 PM
Subject: Re: redistribute between IGPs
> But in that case, is it also a solution to enable ip
> split-horizon?
>
> So, I will say: I don't need to do the filter with
> the sole point of redistribution at all.
>
> --- Thomas Larus <tlarus@cox.net> wrote:
> > Exactly.
> >
> > Tom
> > ----- Original Message -----
> > From: "Peng Zheng" <zpnist@yahoo.com>
> > To: "Thomas Larus" <tlarus@cox.net>
> > Sent: Friday, October 03, 2003 4:40 PM
> > Subject: Re: redistribute between IGPs
> >
> >
> > > Like sometimes RIP or EIGRP running on physical
> > frame
> > > relay interface. Right?
> > >
> > >
> > > --- Thomas Larus <tlarus@cox.net> wrote:
> > > > Okay, I am going out on a limb here, but I
> > believe
> > > > that, if all else in the
> > > > whole scenario is configured just right, there
> > > > should no need for filtering
> > > > at the sole point of redistribution. This is
> > > > because of the loop prevention
> > > > behavior that has been discussed often here,
> > that a
> > > > router will not
> > > > redistribute routes from one routing protocol to
> > > > another that were just
> > > > redistributed into the first routing protocol on
> > the
> > > > same router. (Often
> > > > discussed in regard to connected routes). This
> > is
> > > > why you need to
> > > > redistribute routes separately from each
> > protocol
> > > > into each other protocol
> > > > on a router where you have three protocols
> > running
> > > > and want lots of wild and
> > > > crazy redistribution.
> > > >
> > > > You sometimes see filters in single-point route
> > > > redistribution examples
> > > > because things are not always configured just
> > right.
> > > > For example, I believe
> > > > that if you had a RIP domain in which split
> > horizon
> > > > was disabled somewhere,
> > > > the split horizon problem could cause serious
> > > > problems that might look like
> > > > a "route feedback" problem.
> > > >
> > > > Tom Larus
> > > >
> > > > ---- Original Message -----
> > > > From: "Peng Zheng" <zpnist@yahoo.com>
> > > > To: <ccielab@groupstudy.com>
> > > > Sent: Friday, October 03, 2003 3:24 PM
> > > > Subject: redistribute between IGPs
> > > >
> > > >
> > > > > Is there any scenario that routing filter is
> > > > necessary
> > > > > with one point redistribution between any two
> > of
> > > > IGPs?
> > > > >
> > > > > Thanks.
> > > > >
> > > > >
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