RE: [sc] back-to-back BRI

From: Walter Chen (wchen@xxxxxxxxxxx)
Date: Thu Aug 03 2000 - 15:13:06 GMT-3


   
   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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