From: attia mohamed (ahmattia78@yahoo.com)
Date: Sun Jun 01 2008 - 03:19:25 ART
hi
i asked that question to a ccie certified person so he told me that there is a differnce between loop prevention and mutual redistibution as redistribution on one router donot make loop but on two routers may make loop .
so making tag on the same router that mean mutal redistribution making tagging with two routers is loop prevention ( same routing protocol)
--- On Sat, 5/31/08, John <jgarrison1@austin.rr.com> wrote:
> From: John <jgarrison1@austin.rr.com>
> Subject: Re: Route redistribution question
> To: "Usama Pervaiz" <chaudri@gmail.com>, "Cisco certification" <ccielab@groupstudy.com>
> Date: Saturday, May 31, 2008, 5:35 PM
> This is a good article on the subject
>
> http://blog.internetworkexpert.com/category/ccie-routing-switching/interior-gateway-routing/
> ----- Original Message -----
> From: "Usama Pervaiz" <chaudri@gmail.com>
> To: "Cisco certification"
> <ccielab@groupstudy.com>
> Sent: Saturday, May 31, 2008 2:49 PM
> Subject: Route redistribution question
>
>
> > Hello all,
> >
> > I have a quick question on redistribution. I apologize
> if this has
> > been asked already.
> >
> > I have two routers lets say R1 and R2 both with two
> interface fa0/0
> > and fa0/1 (for simplicity). R1 fa0/0 and R2 fa0/0 are
> both in OSPF and
> > are in area 0 (there are other routers in the middle)
> that would make
> > both R1 and R2 ASBR's. R1 fa0/1 and R2 fa0/1 are
> both in EIGRP AS 100.
> > At this point all connectivity is there and everything
> is well within
> > the area and AS.
> >
> > Now if I do mutual redistribution on both R1 and R2 do
> I have to tag
> > the routes and block them on the other router? i.e. I
> redistributed
> > EIGRP into OSPF on R2 do I tag these routes with 90
> (for simplicity)
> > and on R1 block these routes from re-redistributing
> into EIGRP on R1?
> > Will it even redistribute these routes into EIGRP
> again even if I
> > don't?
> >
> > Any and all help would be appreciated and sorry for
> being so long winded!
> >
> > Thanks,
> > Usama
> >
> >
> >
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