Ethereal-users: RE: [Ethereal-users] ISO8073 OSI COTP over Ethernet

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From: CNS - Matthew Bradley <matthew.bradley@xxxxxxxxxxxxx>
Date: Tue, 27 May 2003 11:41:19 +0100
I've spoken to one of our suppliers who lives and breathes OSLAN.

He says that ICL were the only company in the world to choose LLC SAP 0x54
for their mainframes, and he suggested this was a unilateral decision. My
contact's experience is that all OSLAN hosts other than ICL mainframes
normally use a SAP 0x14. 

So I fear that it will not be possible to identify OSLAN based on LLC alone.

Matthew

-----Original Message-----
From: Martin Regner [mailto:martin.regner@xxxxxxxxx]
Sent: 24 May 2003 07:22
To: Guy Harris; CNS - Matthew Bradley
Cc: 'ethereal-usersetherealcom'
Subject: Re: [Ethereal-users] ISO8073 OSI COTP over Ethernet


Guy Harris wrote:
>Ask somebody at Fujitsu whether OSLAN had 802.2 LLC SAPs of hex 14 and
>54 assigned to it, in which case the way to get it to work in Ethereal
>would be to change it to treat SAPs of 14 and 54 as CLNP, 

Yes I think it would be good if Matthew tried to get some more info about
that.

LLC SAP 0x14 and 0x54 wasn't listed in any of the LLC SAP lists I looked
through (not listed for OSLAN and not for
any other usage).

This list was probably the most complete of the lists I found:
http://www.netwho.com/frame/ether802.htm and
http://datacenter.packx.free.fr/Identifiers/ieee-saps.txt seems to have the
same content

I think that list covered all the SAP values listed in the other documents I
looked through, e.g.:
http://www.ict.tuwien.ac.at/skripten/datenkomm/print/06-LANPrinciples.pdf
http://ckp.made-it.com/ieee8022.html
http://www.process.com/techsupport/pmdf/rfc/rfc1340.html#page-54
http://www.robertore.it/public/Documentazione/Documentazione_tecnica/Reti_di
_computer/C0A.PDF
http://www.tele.sunyit.edu/Chap4_protocols.pdf

I also made some searches on Google to find more about OSLAN, but I didn't
get so much useful details.

LLC SAP 0x14 was however used in the captured OSLAN packets in the document
http://users.iclway.co.uk/jpress/papers/lea.htm


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