RE: [sc] back-to-back BRI

From: Thomas Avery (tom.avery@xxxxxxxx)
Date: Tue Aug 08 2000 - 11:17:47 GMT-3


   
   With 12.1 code you can connected two Cisco router bri -to-bri and
   issue the following to initiate a call:
    isdn call interface bri 0/0 8991000. 8991000 is the number you want
   to call. Do not use ios 12.1.1T. I find at
   least 2 bugs a week testing this code. But again a simulator is your
   best bet. The isdn call command is not sufficient
   for real testing purpose.
   
   Thanks
   TA
   
   -----Original Message-----
   From: owner-cisco-cert@cciecert.com
   [mailto:owner-cisco-cert@cciecert.com]On Behalf Of Christopher M.
   Heffner
   Sent: Monday, August 07, 2000 12:49 PM
   To: ccielab@groupstudy.com; cisco-cert@cciecert.com
   Subject: RE: [sc] back-to-back BRI
   
   Teletone makes a good 2-line ISDN BRI simulator for doing lab
   work. Works with 5ess or ni1 switch types. Will work as a analog 56k
   connection too.
   
   
   
   Price is not cheap though - $1800.00.
   
   
   
   If you need more information let me know or check out www.teletone.com
   
   
   
   Talk to you all later.
   
   
   
     Chris "The Bulldog" Heffner
     Strategic Network Solutions, Inc.
     IMCR Course Director
     Certified Cisco Systems Instructor
     CCSI, CCNA, CCDA, MCT, MCSE, MCNI, MCNE, CLI, CLP, CTT, ASE, A+
     cheffner@attglobal.net
     
   -----Original Message-----
   From: owner-cisco-cert@cciecert.com
   [mailto:owner-cisco-cert@cciecert.com]On Behalf Of mail.jetbn.net
   Sent: Saturday, August 05, 2000 4:36 PM
   To: Ola Aiyegbusi; ccielab@groupstudy.com; cisco-cert@cciecert.com
   Subject: Re: [sc] back-to-back BRI
   
   Sorry. Walter is right. You need a switch to handle the ISDN
   protocols. That's where the ISDN sim comes in. I wish you could use
   a router to switch ISDN the way you can with Frame Relay.
   
   
   
   ----- Original Message -----
   
   From: Walter Chen
   
   To: Ola Aiyegbusi ; ccielab@groupstudy.com ; cisco-cert@cciecert.com
   
   Sent: Thursday, August 03, 2000 2:13 PM
   
   Subject: RE: [sc] back-to-back BRI
   
   I do not think so. This is just like you try to connect two phones
   
   with back-to-back RJ-11 cable to "simulate" a PSTN network. Do you
   
   think it will work? :-)
   
   
   
   The key concept in all switched networks (cell-switched or packet
   
   switched) is that you need a switch (a DCE device) in between the
   
   end (DTE) devices. In ISDN protocols, there is no TE-to-TE
   
   interface defined. (Review the ISDN protocols' S/T/U interface
   
   definitions and functions.)
   
   
   
   Walter Chen
   
   Sr. Network Engineer (CCNA, CCNP 2.0, CCIE candidate)
   
   Microtech-Tel
   
   -----Original Message-----
   From: Ola Aiyegbusi [mailto:ola@compath.com]
   Sent: Wednesday, August 02, 2000 12:43 PM
   To: ccielab@groupstudy.com; cisco-cert@cciecert.com
   Subject: [sc] back-to-back BRI
   
   Can you connect two BRI or PRI interfaces back to back to simulate
   ISDN or connect BRI to PRI directly? I don't have an ISDN simulator
   but have BRI and PRI interfaces on my routers
   
   
   
   Ola Aiyegbusi
   Network Engineer CCDP, CCNP (Voice Access Specialization)
   ComPath Inc.
   10201 Lee Hwy Suite 140 Fairfax VA 22030
   Phone: 703-383-9550 Ext. 122
   Pager: 1-888-857-5620
   Cell: 703-395-8808
   Fax: 703-383-1369
   Email: ola@compath.com
   Web: http://www.compath.com



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