Nokia packet Abis experiment

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Michael Andersen mia at mob5g.net
Wed Sep 12 17:16:00 UTC 2018


Hi OpenBSC,

My company is working on integrating some BTS (Nokia Flexi ESMB) with Nokia
packet Abis with OsmoBSC.

The Nokia packet Abis seems to be Nokia OML/RSL over SCTP/IUA (RFC 3057).

To get started, we have built a little stub that takes the incoming SCTP/IUA
connection and carries out ASP_UP/ASP_ACTIVE handshake. After this handshake
is complete, we see OML coming in from the BTS.

It seems that this OML is in a form that would be understood by
"bts_nokia_site.c". So now we would like to continue the experiment by
feeding the OML/RSL into a BTS configured in OsmoBSC as type "nokia_site".

Now the questions:
1. Is it possible to configure a BTS of type "nokia_site" to run Abis over a
unix domain socket ?
2. Is there a better way to prototype this integration ?

PS: PCAP trace available on request


Best Regards,
Michael Andersen




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