E1 interface, layer 2

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Klaus-Peter Junghanns kpj at junghanns.net
Tue Mar 10 14:24:00 UTC 2009


Hi,

i am staring at the sources right now, figuring out how openbsc uses 
which part of misdn to send/receive frames over the e1 link. I think
it's doing something like this (please correct me if i am wrong:

- use timeslot 1 in hdlc mode for the signalling link
- use misdns layer 2 to handle the TEI assignment, etc

What i am wondering about is:
- which ETSI standard describs layer 2 for GSM abis?

Thanks a lot in advance for your feedback. :-)

Mit freundlichen Grüßen
-- 
best regards

Klaus-Peter Junghanns
--
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mbH
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