[c-nsp] rescue router for DS3 service

[Lupi, Guy]

This looks like it does what you are referring to, I suppose you could just
leave the standby router up and running, while it sees no signal on the DS1s
it wouldn't announce the routes.  When the protection switch happens the
circuits would come up on the standby, down on the primary, the standby
would start announcing the routes and the primary would stop.  I have never
tried this but it is an interesting concept.

http://www.effeng.com/vtc/ds3/1-Gen%20Desc%20&%20Specs.pdf


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mark Kent
Sent: Wednesday, August 03, 2005 1:22 PM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] rescue router for DS3 service

I've got some multichannel DS3 circuits and was wondering about using
Y-cables so I can terminate the circuits on a rescue-router.  
Hardware involved is 7206vxr chassis and PA-MC-T3 and PA-MC-2T3+ ports.

Physically, can this be done?
Would the rescue-router have to be powered down, or would just shutting the
redundant ports be enough?

Or, are there special electronics needed to provide this kind of redundancy
on a platform that was not designed for this?  Maybe a switch box with one
DS3 input and two DS3 outputs with serial access for commands?

Thanks,
-mark
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