Common operational misconceptions

Thu Feb 16 14:08:18 UTC 2012

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 at bogus.com] 
> Sent: Wednesday, February 15, 2012 11:58 PM
> To: Kenneth M. Chipps Ph.D.
> Cc: nanog at 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.