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OsmoSTP » History » Revision 13

Revision 12 (laforge, 05/11/2018 11:58 AM) → Revision 13/16 (osmith, 01/24/2020 09:38 AM)

h1. OsmoSTP 

 The Osmocom Signal Transfer Point is    a SS7 Transfer Point implementing MTP routing as well as SIGTRAN SG (Signaling Gateway) functionality. 

 The program is currently part of the [[libosmo-sccp:]] git repository, as it is basically just a small main loop + VTY interface wrapped around the libosmo-sigtran code (which in turn implements connectionless + connection-oriented SCCP, SUA and M3UA in both SG and ASP roles). 

 h2. SIGTRAN protocol support 

 OsmoSTP supports all transport protocols implemented in [[libosmo-sccp:|libosmo-sigtran]].    At time of this writing (October 2017), this includes: 
 * SCTP + M3UA + SCCP 
 * SCTP + SUA 
 * IPA + SCCP (experimental) (experimental 

 We're looking for contributions/funding to add more protocols like M2UA, M2PA 

 h3. traffic mode support 

 OsmoSTP currently only implements _override_ and doesn't implement the _load-share_ or _broadcast_ traffic modes. Contributions in whatever form are welcome. 

 h2. Position in a typical Osmocom cellular network 

 {{graphviz_link() 
 digraph G { 
     rankdir = LR; 
     BTS -> OsmoBSC [label="Abis/IP"]; 
     hNodeB -> OsmoHNBGW [label="Iuh"]; 
     OsmoBSC -> OsmoSTP [label="AoIP/M3UA"]; 
     OsmoSTP -> OsmoMSC [label="AoIP/M3UA"]; 
     OsmoSTP -> OsmoMSC [label="IuCS/M3UA"]; 
     OsmoHNBGW -> OsmoSTP [label="IuCS/M3UA"]; 
     OsmoHNBGW -> OsmoSTP [label="IuPS/M3UA"]; 
     OsmoSTP -> OsmoSGSN [label="IuPS/M3UA"]; 
     OsmoMSC -> OsmoHLR [label="GSUP"]; 
     OsmoSGSN -> OsmoHLR [label="GSUP"]; 
     OsmoSTP [color=red]; 
 } 
 }} 

 {{include(cellular-infrastructure:MacroBinaryPackages)}} 

 h2. User Manuals 

 The OsmoSTP user manual is still work in progress.   

 * "osmostp-usermanual.pdf":http://ftp.osmocom.org/docs/latest/osmostp-usermanual.pdf 
 * "osmostp-vty-reference.pdf":http://ftp.osmocom.org/docs/latest/osmostp-vty-reference.pdf 

 h2. Source Code 

 The source code is available from @git.osmocom.org@ (module @libosmo-sccp@). 

 Public read-only access is available via 
 <pre> 
 git clone git://git.osmocom.org/libosmo-sccp.git 
 </pre> 

 You can browse it via cgit:    https://git.osmocom.org/libosmo-sccp 

 Contributions are welcome via [[cellular-infrastructure:Gerrit]]. 

 h2. Test Suite 

 We are running the "sua-testtool":http://git.osmocom.org/nplab/sua-testtool/ and "m3ua-testtool":http://git.osmocom.org/nplab/m3ua-testtool/ by Michael Tuexen, implementing the ETSI conformance specshave a TTCN-3 test suites 
 * results: https://jenkins.osmocom.org/jenkins/view/TTCN3/job/nplab-m3ua-test/ and https://jenkins.osmocom.org/jenkins/view/TTCN3/job/nplab-sua-test/ 

 h2. Contact / Getting Help 

 Contact us via the openbsc@ mailing list, see [[Cellular-Infrastructure:Mailing Lists]]. 

 You can file issues (bugs / feature requests) using the redmine project you're currently viewing. 

 h2. Authors / Credit 

 OsmoSTP was created by Harald Welte. It is maintained by Harald Welte and his team at sysmocom.
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