We run IS-IS at the University of Pennsylvania as the IGP for IPv6. I know of a few other non-ISPs too but I won't speak for them. At the time we initially deployed IPv6, it was pretty much one of the few safe choices (OSPFv3 implementations were very new then). --Shumon. On Thu, Feb 16, 2012 at 12:00:04AM -0600, Kenneth M. Chipps Ph.D. wrote:
"ISIS is used in organizations other than ISPs" Any examples you can share of some other than ISPs?
-----Original Message----- From: Joel jaeggli [mailto:joelja@bogus.com] Sent: Wednesday, February 15, 2012 11:58 PM To: Kenneth M. Chipps Ph.D. Cc: nanog@nanog.org Subject: Re: Common operational misconceptions
On 2/15/12 21:04 , Kenneth M. Chipps Ph.D. wrote:
How widespread would you say the use of IS-IS is?
Even more as to which routing protocols are used, not just in ISPs, what percent would you give to the various ones. In other words X percent of organizations use OSPS, Y percent use EIGRP, and so on.
Using EIGRP implies your routed IGP dependent infrastructure is a monoculture. That's probably infeasible without compromise even if you are largely a Cisco shop.
ISIS is used in organizations other than ISPs.
-- Shumon Huque University of Pennsylvania.