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laforge, 03/23/2018 12:46 PM


OsmoSGSN

Serving GPRS Support Node (SGSN). As such it implements the GPRS Mobility Management (GMM) and SM (Session Management).

The SGSN implements
  • the Gb interface to the BSS's (like the OsmoPCU or an ip.access nanoBTS)
  • the Gp interface with its GTP protocol to one or more Gateway GPRS Support Node (GGSN) like OsmoGGSN.
  • the IuPS interface with its RANAP protocol to onre or more RNCs or HNB-GWs like OsmoHNBGW
  • the GSUP Interface/Protocol towards OsmoHLR

OsmoSGSN is available from the http://git.osmocom.org/osmo-sgsn/ repository. In order to build it, you will need a libgtp installation from the
OsmoGGSN project.

Position in a typical Osmocom network

For a more complete graph, see [[Cellular Infrastructure:Osmocom Network In The Box]]

Setup / Configuration

For more information regarding the setup + configuration, refer to OpenBSC_GPRS

Binary Packages

Osmocom provides binary packages for several flavors of Debian and Ubuntu GNU/Linux on a variety of architectures (i586, x86_64, armhf, armv7l). Unless you are a software developer interested in developing on Osmocom, it is recommended you use those packages instead of building from source.

For more details see Binary_Packages

User Manuals

Source code

The source code is available from git.osmocom.org (module osmo-sgsn).

Public read-only access is available via

git clone git://git.osmocom.org/osmo-sgsn.git

You can browse it via cgit: https://git.osmocom.org/osmo-sgsn

Contributions are welcome via [[Cellular Infrastructure:Gerrit]].

Contact / Getting Help

Contact us via the osmocom-net-gprs mailing list, see [[Cellular Infrastructure:Mailing Lists]].

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

TODO list

For details see the Issue tracker above. Roughtly, the following areas are in need of attention:

  • secondary PDP contexts
  • persistent storage of GMM and SM state
  • recovery from GGSN outages
  • SMS delivery via GPRS
  • network-initiated PDP context activation
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Updated by laforge about 6 years ago · 21 revisions

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