Cell Relay Archive

[Paul Koning <pkoning@xedia.com>]

Meng-Hsi Chiu wrote:
> 
>     Becaue the ATM forum recommendations, VCI range from 0 to 31 must
> reserve for
> 
> special usage. So the user's VCI is ranging from 32 to 65535 in theory.
> My question
> 
> is:
> 
>     How the ATM switch will assign the VCI range? Is it assigned from
> VCI=32, then
> 
> VCI=33, then VCI=34, then VCI=35? If the first connection(its VCI=32)
> release
> 
> connection now, what VCI number will be assigned for next call setup,
> whether it is
> 
> 32 or 36?  It is important to us, please answer me.

It depends on the switch.  I don't know any specific rules used;
certainly the standards have nothing to say about it.

Why is it important?  Or rather, if it's important in your system
you probably have a bad design decision somewhere, because nothing
in your design should depend on a particular assignment rule.

	paul