[9314] in North American Network Operators' Group
Re: Warning, CDP interaction at Mae-EAST
daemon@ATHENA.MIT.EDU (Golan Ben-Oni)
Wed May 14 11:21:18 1997
Date: Wed, 14 May 1997 11:03:57 -0400 (EDT)
From: Golan Ben-Oni <bnite@tremere.ios.com>
To: Owen DeLong <owen@DeLong.SJ.CA.US>
cc: nanog@merit.edu
In-Reply-To: <199705141433.HAA18220@dixon.DeLong.SJ.CA.US>
> Why on EARTH?!? would _ANYONE_ run CDP at a MAE or any other exchange point?
You would be suprised at the large number of folks who've got CDP enabled
at the exchange points -- Ironically, we enabled it to get a sense of what
other IOS versions were running on our peers routers prior to a code
upgrade to fix some issues that were affecting us.
> Especially given the congestion, and other problems at the MAE's, why run
> a protocol to discover other Cisco's you have to explicitly configure peering
> sessions with anyway? If someone can explain a reason not to turn off CDP
> at an exchange point, I'm all ears.
Given that its on by default cdp needs to either be turned off completely,
or disabled for a particular interface, folks probably just leave it on.
I highly doubt CDP contributes to congestion problems with the little
amount of traffic it generates - Although if you've ever looked at some of
the traffic at the Mae's you'd be sickened by all of the other things
floating around.
I suppose another eason to disable CDP in addition to disabling any
non-essencial traffic and/or processes would be for privacy.
