Will this circuit backup solution work?

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#199

From: Doug A. Chan
Date: Thu, 13 Aug 1992 04:33

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I'm going to have two MGS connected over a dedicated 56Kbps circuit.
Currently I've got enough equipment around to setup a backup circuit using
switched-56/ISDN-BRI but it all hinges on whether the router can be 
configured to work with it.

 [ROUTER_A]                                                [ROUTER_B]
     #                                                       #    #
     #                                                       #    #
     #    /--{ded-56}----------//------------{ded-56}---[CSU_B]   #
  [CSU_A]<                                                        #
          \--{sw-56}-----------//-----------{ISDN}--[TERMINAL_ADAPTER]

CSU_A can pull up a switched circuit when the dedicated line is down.
Suppose router_A's serial port IP address is 200.200.200.1 and router_B
has 200.200.200.2 and 200.200.200.3 for it's interfaces.  Obviously,
router_B will be talking thru either one of two serial ports depending
on the state of the dedicated circuit.
Will either/both routers run into problems with sudden changes of it's
"path"?

FYI, Router_A is running 8.3.3 while router_B has 8.2.7.

-Doug
apollo@buengc.bu.edu

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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!bu.edu!buengc.bu.edu!apollo
From: apollo@buengc.bu.edu (Doug A. Chan)
Newsgroups: comp.dcom.sys.cisco
Subject: Will this circuit backup solution work?
Message-ID: <93539@bu.edu>
Date: 13 Aug 92 04:33:48 GMT
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Organization: College of Engineering, Boston University, Boston, MA, USA
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Originator: apollo@buengc.bu.edu