On Thu, Sep 2, 2010 at 2:37 PM, Leo Bicknell <bicknell@ufp.org> wrote:
In a message written on Thu, Sep 02, 2010 at 03:20:05PM +0300, lorddoskias wrote:
I'm just curious - what is the largest OSPF core (in terms of number of routers) out there?
I'll admit to having seen a network with over 400 devices in an OSPF area 0, didn't design it, and in the end didn't get to work on it.
I know of a large enterprise with ~4k devices in area-0, according to their vendor^H^H^H^H^Hdesigner that was all perfectly fine.
Far as I know worked just fine though, no issues reported. How well your IGP scales depends a lot more on what you put in it, and how dynamic your network situation is than the protocol or number of devices.
I think the only reason the one I saw worked at all was it was relatively stable. If things happened though (like say the code-red incident in ... whenever that was) the network turned into a steaming pile of fail. really, not a good plan, of course as Leo says ISIS probably gets super unhappy if a large percent of interfaces start to go bouncey-bouncey. -Chris