[163013] in North American Network Operators' Group
Re: ISIS and OSPF together
daemon@ATHENA.MIT.EDU (Jen Linkova)
Wed May 15 11:32:02 2013
In-Reply-To: <CAPLq3UN6KcDLxA9uq+XW9PLt04YGwaHHe3N-6i136upbCEc5eQ@mail.gmail.com>
From: Jen Linkova <furry13@gmail.com>
Date: Thu, 16 May 2013 01:31:30 +1000
To: Glen Kent <glen.kent@gmail.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Sun, May 12, 2013 at 6:41 PM, Glen Kent <glen.kent@gmail.com> wrote:
> I would like to understand the scenarios wherein the service
> provider/network admin might run both ISIS and OSPF together inside their
> network. Is this something that really happens out there?
>
> One scenario that i can think of when somebody might run the 2 protocols
> ISIS and OSPF together for a brief period is when the admin is migrating
> from one IGP to the other.
>
> The other instance would be when say OSPF is used to manage the OOB network
> and the ISIS is used for network reachability.
> Is there any other scenario?
There is still equipment around which doesn't support ISIS but support OSPF.
Getting such boxes into a network which is using ISIS might lead to
running both protocols together.
--
SY, Jen Linkova aka Furry
