Cell Relay Archive

[ahaider@k-net.co.uk (Afzal Haider)]

>
>Hi all.
>
>I was wondering if someone out there (one of the gurus) could explain
>to me how the "Call Reference" Information Element (IE) passed in 
>connection control signalling differs from the "Connection Identifier"
>IE. To me it seems that with the Connection Identifier IE, the 
>call reference IE is redundant. This is obviously not the case, but 
>for the life of me I can't see why?
>
>For information, I'm working from The ATM Forum UNI Specs Ver 3.1,
>but it is not particularly enlightening.
>
>Anybody got any explanations
>
>Thanks in advance
>Ash
>
>*****************************************************************************
>Ashley J. Cummings					ash@ee.latrobe.edu.au
>School of Electronic Engineering			Tel : +61 3 9479 1593
>La Trobe University, Vic. 3083				Fax : +61 3 9471 0524
>Australia		    http//www.ee.latrobe.edu.au/postgrad/ash/ash.html
>**********	The more I learn, the less I know !!!!!!	*************
>
The difference between "Call Reference" and "Connection Identifier" is very
straight forward. The "Call Reference" is used to identify the connection
you are try to set-up, whereas, the "Connection Identifier" is used to pass
information (VPI/VCI) about the ATM connection setup(or resources allocated)
on your behalf.
      
Afzal.

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Afzal Haider                      
K-NET R&D Ltd           

WEB server: www.k-net.co.uk
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