nanog mailing list archives

Re: out-of-band network experiences


From: Dave Siegel <dave () siegelie com>
Date: Wed, 28 Nov 2001 16:13:49 -0700


On Mon, Nov 05, 2001 at 04:47:31PM -0500, Sean Donelan reportedly typed:
A few (very few) providers have a dedicated out-of-band management
network.  Generally a frame-relay circuit to a management hub/router
connected to the async terminal server and low-speed (10 meg) ethernet
port on some routers.  One problem with high-end routers, it is either
expensive (lost opportunity cost) or impossible to connect low-speed
circuits to high-end routers.

The Cisco 3640 makes for a nice console server to hook up to your
out of band network.  It supports a 32port Async module as well as 
10/100 ethernet and T1 WIC (supports Frame Relay, of course).  It also
supports E1 for your non-domestic sites.

Carrier/facility based providers tend to use their own facilities.  Yep,
facility based providers have cut their own facilities in the past,
including one provider which took their own NOC off-line for most of
a day.

It's always good to have a backup, even for your management netowrk.  When 
the Frame Relay network fails, there's always the OOB modem/POTS.

Dave



-- 
Dave Siegel
HOME   520-877-2593   dave at siegelie dot com
WORK   520-877-2628   dsiegel at gblx dot net
                      Director, IP Engineering, Global Crossing


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