From: Nick Shah (nshah@xxxxxxxxxxxxxx)
Date: Fri Mar 01 2002 - 23:13:01 GMT-3
You could though connect a PRI port back to back with another PRI port and
simulate. Check the archives to find the url posted earlier.
If you want to practise triggered updates / snapshot / demand circuits, i
would suggest using aux back to back . (However note, that only one end can
initiate the call)
hth
Nick
-----Original Message-----
From: Steven M. Sowell <ssowell@gate.net>
To: Michael Jia <mjia@cisco.com>; Ccielab@Groupstudy. Com
<ccielab@groupstudy.com>
Date: Saturday, 2 March 2002 12:42
Subject: RE: ISDN BRI back to back
>The ISDN q.921 and q.931 messaging is designed to communicate from source
>end-system to local switch to destination switch to destination
>end-system(router) and back. When the router decides to call (due to
>interesting traffic) it sends a q.931 call request to the switch which
>response with a "call proceeding" message and forward the request toward
the
>destination router, which recieves an "incoming call setup request" from
its
>local switch. So the short answer is "No" you can't connect Cisco ISDN
>routers back to back. I use an actual ISDN switch in my lab($$$), but the
>archives and recent posts have some relatively inexpensive simulators.
>Stee
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
>Michael Jia
>Sent: Friday, March 01, 2002 4:45 PM
>To: Ccielab@Groupstudy. Com
>Subject: ISDN BRI back to back
>
>
>Hi,
>
>Is anyone know if it is possible to connect ISDN BRI back to back without a
>switch?
>
>The following link seems to hint it is possible.
>http://www.cisco.com/warp/public/793/access_dial/8.html
>
>Also, I was told "isdn net" can make a BRI act as the network side.
>What is it mean?
>
>Do we have to buy a ISDN switch simulator?
>
>Thanks
>--
>Michael Jia
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