From: Swaroop Potdar (swarooppotdar@hotmail.com)
Date: Wed Aug 18 2004 - 03:50:49 GMT-3
Hi Brian,
hows it possible...cos as mentioned the ISIS doesnt advertise the prefixes
of the connected interfaces but only the routes in teh ISIS table.
I mean even if we use any other protocol on the second end...with ISIS on
this end the same behaviour should be reproduced...am i right..
then how with EIGRP this got resolved..??
Am confused.
Swaroop.
>From: "thunai" <thunai@cisco.com>
>Reply-To: "thunai" <thunai@cisco.com>
>To: "'Brian McGahan'" <bmcgahan@internetworkexpert.com>, "'Annu Roopa'"
><annu_roopa@yahoo.com>, "'ccie Meftahi'" <samccie2004@yahoo.co.uk>
>CC: <ccielab@groupstudy.com>
>Subject: RE: ISIS & OSPF
>Date: Wed, 18 Aug 2004 09:04:07 +0500
>
>Thanks Brian , When I replaced OSPF with EIGRP , I got the routes with
>out redistributing. Is this a normal behavior.
>
>
>Regds
>Thunai
>
>
>
>-----Original Message-----
>From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
>Sent: Wednesday, August 18, 2004 2:55 AM
>To: thunai; Annu Roopa; ccie Meftahi
>Cc: ccielab@groupstudy.com
>Subject: RE: ISIS & OSPF
>
>
>Thunai,
>
> This is the normal behavior of IS-IS. The routing process
>treats IS-IS differently than the other IP based protocols. One of the
>effects of this is that when you redistribute IS-IS into another
>protocol, only the routes that are listed as IS-IS in the routing table
>are redistributed. This implies that connected interfaces (which are
>listed as connected) will not get redistributed. To resolve this,
>simply issue the redistribute connected statement.
>
> This used to be an issue with OSPF until they changed the code
>to have it include the connected interfaces. As of 12.2T however, the
>IS-IS code has not been updated to include this.
>
>
>HTH,
>
>Brian McGahan, CCIE #8593
>bmcgahan@internetworkexpert.com
>
>Internetwork Expert, Inc.
>http://www.InternetworkExpert.com
>Toll Free: 877-224-8987 x 705
>Outside US: 775-826-4344 x 705
>24/7 Support: http://forum.internetworkexpert.com
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>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
>Of
> > thunai
> > Sent: Tuesday, August 17, 2004 9:44 AM
> > To: 'Annu Roopa'; 'ccie Meftahi'
> > Cc: ccielab@groupstudy.com
> > Subject: RE: ISIS & OSPF
> >
> > Thanks for the Input. The Questions My OSPF router should all the
>routes
> > with out doing a redistribute connected. Just to finish the other part
>
> > of the LAB like BGP etc... i just did redistribute connected and
> > completed the LAB. I am not sure why that was not coming ... Any case
>i
> > will simiulte only this enviormnet and test. again.
> >
> > Regds
> > Thunai
> >
> >
> >
> > -----Original Message-----
> > From: Annu Roopa [mailto:annu_roopa@yahoo.com]
> > Sent: Tuesday, August 17, 2004 7:22 PM
> > To: thunai; 'ccie Meftahi'
> > Cc: ccielab@groupstudy.com
> > Subject: RE: ISIS & OSPF
> >
> >
> > Thunai,
> >
> > Have u given "redistribute connected subnets" and if u are using
> > route-maps for filtering any connected routes..verify them. Once u
>give
> > the command maybe just do a clear ip ospf redis and see if it works.
>It
> > should.
> >
> > HTH.
> > Annu.
> >
> > thunai <thunai@cisco.com> wrote:
> >
> > Hai
> > I my scenario , i have defined only IS-type Level2 I have done the
> > redistribution of Level2 routes in to OSPF.
> >
> >
> > Regds
> > Thunai
> > -----Original Message-----
> > From: ccie Meftahi [mailto:samccie2004@yahoo.co.uk]
> > Sent: Tuesday, August 17, 2004 10:42 AM
> > To: thunai
> > Subject: Re: ISIS & OSPF
> >
> >
> >
> > did u use redistribute level1 and level 2 ?
> >
> > thunai wrote:
> >
> > Dear Group ,
> >
> > I am working with ISIS & OSPF. The following is the
> > scenario.
> >
> >
> > R1-(e0)----(isis)--------(e0)--r2(s0)---------OSPF(FR)--------s0(r3).
> >
> >
> >
> > R1 and R2 formed neighbors in ISIS , I have all the routes from r1
> > listed in r2 as ISIS routes. R2 and R3 formed neighbors in OSPF , I
> > have all the routes from R2 listed in R3 as OSPF routes
> >
> > I have redistributed OSPF and ISIS on R2. I have all the ospf Routes
>in
> > R1.
> >
> > However i have only the ethernet route ( where ISIS is running between
>
> > R1 and R2 ) is missing in R3. I did redistribute Connected to get that
>
> > route..
> >
> > Can some body help me on this.issue..
> >
> >
> >
> > Regds
> > Thunai
> >
> >
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