From: Nick Shah (nshah@connect.com.au)
Date: Thu Oct 17 2002 - 00:27:47 GMT-3
Try using area-range xxx NOT-ADVERTISE option. I guess its available
starting 12.1.
IP ospf database filter, filters out 'all' LSA's.
Thanks
Nick
----- Original Message -----
From: "Donny MATEO" <donny.mateo@sg.ca-indosuez.com>
To: <ccielab@groupstudy.com>
Sent: Thursday, October 17, 2002 12:37 PM
Subject: RE: Filtering OSPF LSA type 3
> can't find this ospf filter-list command on 12.1(13).
> Can you tell me where this command is or does it require higher IOS
version ?
>
> Donny
>
>
>
> Senthil Kumar
> <senthil.kumar@intechno To: Peter van
Oene <pvo@usermail.com>, Senthil Kumar
> logy.co.uk>
<senthil.kumar@intechnology.co.uk>, Dimitris Vassilopoulos
> Sent by:
<Dimitris.Vassilopoulos@eurodyn.com>, ccielab@groupstudy.com
> nobody@groupstudy.com cc:
> Subject: RE:
Filtering OSPF LSA type 3
>
> 16-10-2002 21:12
> Please respond to
> Senthil Kumar
>
>
>
>
>
>
> you can filter lsa's with ospf filter-list
>
> -----Original Message-----
> From: Peter van Oene [mailto:pvo@usermail.com]
> Sent: 16 October 2002 14:06
> To: Senthil Kumar; Dimitris Vassilopoulos; ccielab@groupstudy.com
> Subject: RE: Filtering OSPF LSA type 3
>
>
> Keep in mind that you can't filter LSAs. You can filter routing
> information as it moves from the LSDB to the local routing table, but not
> the reception and publication of the LSAs to the LSDB. Filtering LSA
> reception would directly violate the specifications and likely lead to
> routing instability as SPF is only effective when everyone looks at the
> same topology.
>
> At 01:58 PM 10/16/2002 +0100, Senthil Kumar wrote:
> >true, but what if you want to filter some lsa-3 only..distribute list
might
> >help when introduced on inbound routes at all peers.wont it?
> >
> >-----Original Message-----
> >From: Peter van Oene [mailto:pvo@usermail.com]
> >Sent: 16 October 2002 13:36
> >To: Dimitris Vassilopoulos; ccielab@groupstudy.com
> >Subject: Re: Filtering OSPF LSA type 3
> >
> >
> >All you can do here is use the totally stubby knob on the ABR(s). Once
the
> >LSA is in the area, it is mandatory that all area resident routers
receive
> >the LSA and correctly process it. Distribute-list in simply prevents any
> >relevant reachability information from making it to the local routing
> >table, but has no effect on LSA's.
> >
> >At 01:35 PM 10/16/2002 +0300, Dimitris Vassilopoulos wrote:
> > >Team,
> > >
> > >Cisco says in
> >
>
>http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/12
> >2t/122t4/ftabrt3f.htm
> > >
> > >that if you want to filter OSPF type 3 LSA you have to run 12.2(4)T.
> > >I know that the image running in the lab is 12.1.x
> > >
> > >What if we're asked to filter inbound type 3 LSAs from a BB router?
> > >We must use " distribute-list x in " in EVERY ospf router ?
> > >
> > >Any comment on that would be appreciated...
> > >
> > >Dimitris
> >
> >________________________________________________________________________
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