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Re: routable interfaces

To: jamal <hadi@xxxxxxxxxx>
Subject: Re: routable interfaces
From: Gleb Natapov <gleb@xxxxxxxxxxx>
Date: Wed, 17 Jan 2001 16:03:08 +0200
Cc: kuznet@xxxxxxxxxxxxx, netdev@xxxxxxxxxxx
In-reply-to: <Pine.GSO.4.30.0101170704040.20342-100000@shell.cyberus.ca>; from hadi@cyberus.ca on Wed, Jan 17, 2001 at 07:25:06AM -0500
References: <20010117114651.H5122@nbase.co.il> <Pine.GSO.4.30.0101170704040.20342-100000@shell.cyberus.ca>
Sender: owner-netdev@xxxxxxxxxxx
On Wed, Jan 17, 2001 at 07:25:06AM -0500, jamal wrote:
> > Currently zebra has one to one mapping between "kernel interfaces" and 
> > "zebra interfaces".
> > If I want to run OSPF (I don't know about other protocols) on secondary ips 
> > zebra should
> > be able to have "zebra interface" for each ip (and not for each interface), 
> > or, in other words
> > one to many mapping. This is only theory, I don't know if it's even 
> > possible to implement such
> > thing (you never know until you'll try ;)).
> 
> It sounds reasonable especially from the perspective that you are
> forced to maintain distinct neighbor lists per "interface". I think the
> problem is solved if Zebra knows how to do NBMA OSPF. On the same link: at
> least the physical attributes can be shared (MTU etc) between all the "virtual
> links" or maybe not even that if you use path/per-route MTUs.
>

OSPF knows about NBMA, NBMA has one network address and no broadcast 
capability; we face a different 
problem here: we have many network addresses assigned to one network.
 
--
                        Gleb.

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