[149856] in North American Network Operators' Group
Re: Common operational misconceptions
daemon@ATHENA.MIT.EDU (Owen DeLong)
Thu Feb 16 14:32:14 2012
From: Owen DeLong <owen@delong.com>
In-Reply-To: <20120216140818.GA15528@isc.upenn.edu>
Date: Thu, 16 Feb 2012 11:25:18 -0800
To: Shumon Huque <shuque@upenn.edu>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
I would say that the average University is more of an unusual ISP than a =
non-ISP.
Almost every University I know of has a networking group that functions =
like an ISP for the various departments of the college(s) as well as =
providing essentially residential ISP services to their
residence halls and in some cases fraternities, faculty housing, etc.
=46rom a networking perspective they tend to operate much more like an =
ISP than an enterprise.
One of the key defining differences (IMHO) is that an enterprise =
(mostly) trusts the employees connected to its network whereas an ISP =
and a University cannot.
Owen
On Feb 16, 2012, at 6:08 AM, Shumon Huque wrote:
> 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=20
> them. At the time we initially deployed IPv6, it was pretty
> much one of the few safe choices (OSPFv3 implementations were=20
> very new then).
>=20
> --Shumon.
>=20
> 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?
>>=20
>> -----Original Message-----
>> From: Joel jaeggli [mailto:joelja@bogus.com]=20
>> Sent: Wednesday, February 15, 2012 11:58 PM
>> To: Kenneth M. Chipps Ph.D.
>> Cc: nanog@nanog.org
>> Subject: Re: Common operational misconceptions
>>=20
>> On 2/15/12 21:04 , Kenneth M. Chipps Ph.D. wrote:
>>> How widespread would you say the use of IS-IS is?
>>>=20
>>> Even more as to which routing protocols are used, not just in ISPs,=20=
>>> what percent would you give to the various ones. In other words X=20
>>> percent of organizations use OSPS, Y percent use EIGRP, and so on.
>>=20
>> 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.
>>=20
>> ISIS is used in organizations other than ISPs.
>=20
>=20
> --=20
> Shumon Huque
> University of Pennsylvania.
