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:joe...@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.