Feature #1993

osmo-hnbgw and libiu code of OsmoMSC and OsmoSGSN needs to be ported to libosmo-sigtran

Added by laforge 7 months ago. Updated 11 days ago.

Target version:
Start date:
Due date:
% Done:


Spec Reference:


The changes required in libosmo-sigtran to support AoIP require other users of libosmo-sigtran to be ported to the new API. Currently, this mans osmo-hnbgw as well as OsmoMSG and OsmoSGSN, who all use the Iu interface (currently over SUA, then over real M3UA).

Related issues

Related to OpenBSC - Feature #1843: osmo-bsc: Add SCCP/M3UA signaling transport as alternative to IPA multiplex Stalled 11/18/2016


#1 Updated by laforge 7 months ago

  • Related to Feature #1843: osmo-bsc: Add SCCP/M3UA signaling transport as alternative to IPA multiplex added

#2 Updated by laforge 7 months ago

  • Project changed from OpenBSC to OsmoHNBGW
  • Target version deleted (A-over-IP interface as per 3GPP)

#3 Updated by laforge 7 months ago

  • Status changed from New to In Progress
  • % Done changed from 0 to 20

osmo-hnbgw was really simple, but I think there are some wrong design assumptions in libiu which make porting of the OsmoMSC and OsmoSGSN much harder. Each UE context should not store a reference to the SCCP Link, but to the remote SCCP Address. It doesn't matter from which physical link a message originates; it only matters from which SCCP CalledAddress it comes from. I'll investigate required architectural changes and modify it accordingly.

#4 Updated by laforge 6 months ago

  • % Done changed from 20 to 70

I have a version of osmo-hnbgw and osmo-msc that talk to each other on top of the current laforge/sigtran branch of libosmo-sccp via the new osmo-stp. This needs more testing + clean-up but I think it will be resolved soon.

#5 Updated by laforge 2 months ago

  • Status changed from In Progress to Feedback
  • Assignee changed from laforge to neels
  • % Done changed from 70 to 80

I think this has been implemented by Neels, please double-check. At least I could build osmo-iuh master against libosmo-sigtran master right now, so I guess the porting has been done.

#6 Updated by neels 2 months ago

  • Status changed from Feedback to Resolved
  • % Done changed from 80 to 100

correct, osmo-iuh master is using libosmo-sccp master and the new SIGTRAN now, has been tested successfully with an actual nano3G and the new split-up osmo-{msc,bsc,mgw,sgsn}.git code state.

#7 Updated by laforge 11 days ago

  • Status changed from Resolved to Closed

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