From: Peng Zheng (zpnist@yahoo.com)
Date: Fri Oct 03 2003 - 20:12:25 GMT-3
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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> >
>
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