[c-nsp] Route Reflector Design

Mike Johnson harbor235 at gmail.com
Wed Jul 2 11:34:42 EDT 2008


How am I able to utilize thousands of devices in a flat IGP domain? I
thought
only a couple hundred is recommended before deploying multiple areas.

Are you guys recommneding OSPF or ISIS?

-mike j



On 7/2/08, Tim Franklin <tim at pelican.org> wrote:
>
> On Wed, July 2, 2008 2:48 pm, Mike Johnson wrote:
>
> > Got that, now for a large network would you create a backbone area (OSPF)
> > for regionalization of routes
> > and make routers within the region into other areas? Its the underlying
> > IGP
> > design that makes all the connector nets to POPs available my main
> > concern.
>
> I wouldn't bother, unless you have many thousands of devices - but I must
> admit I haven't crunched the numbers hard or built anything large enough
> to see where the necessary pain happens.
>
> Remember, at this point you've only got a fairly small number of routes in
> your IGP, and they ought to be the most stable routes in your network, so
> you're going to be running SPF both quickly and infrequently.
>
> Regards,
> Tim.
>
>
>


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