Cell Relay Archive

[Paul Koning <pkoning@xedia.com>]

albert.e.manfredi@boeing.com wrote:
> ...
> Hmm, Paul. I don't know that you can assume that the "local/global"
> flag used in MAC addresses also applies to ESIs? Not that this changes
> anything here, but the ESI is really not constrained to any MAC address
> rules, as far as I can determine. Perhaps I missed some significant
> paragraph somewhere.

The UNI and signalling specs say "this end system identifier can be
a globally unique identifier specified by an IEEE MAC address".

So the MAC address rules do apply.  What bugs me is the words "can be".
That's bogus because it defeats the purpose.
 
> My reaction in general would be that what Shaheen wants to do is
> perfectly fine. Although I also agree that the SEL's purpose is as you
> describe. (But should you need more than 256 internal destinations for
> these messages, you might need to resort to using the ESI bits.)

True.  Part of what puzzles me is the strange values that appear in
the ESI.  Locally administered values should appear only when defined
by network management.  It didn't sound like he was the one who
put those numbers in.

If you have a box that needs more than 256 addresses, the right solution
is to allocate more than one IEEE ID to it.

	paul

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