At the moment we parse the RAN TRANSPARENT CONTAINER to look at the destination RIM ROUTING INFORMATION. This is not correct. The SGSN should not decode the RAN TRANSPARENT CONTAINER and use the RIM ROUTING ADDRESS / RIM ROUTING ADDRESS DISCRIMINATOR IE to make the routing decision. Related: OS#6095 Depends: libosmocore.git Ibca1f08906c4ffeecdae80d4e91c6c7b05fe4f8a Change-Id: Ifd2b915ed2f05130cff8ee77714b82005c17de3d
osmo-sgssn - Osmocom SGSN Implementation
This repository contains a C-language implementation of a GSM Serving GPRS Support Node (SGSN) for 2G (GSM) and 3G (UMTS). It is part of the Osmocom Open Source Mobile Communications project.
- Gb towards PCUs (e.g. OsmoPCU): Various GbIP flavors + Gb/FR/E1
- GTP towards a GGSN (e.g. OsmoGGSN);
- IuPS over IP towards RNCs / HNBGW (e.g. osmo-hnbgw)
- The Osmocom typical telnet VTY and CTRL interfaces.
- The Osmocom typical statsd exporter.
- GSUP (custom MAP-like protocol) towards osmo-hlr
- GPRS mobility management
- GPRS session management
You can clone from the official osmo-sgsn.git repository using
git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-sgsn
There is a web interface at https://gitea.osmocom.org/cellular-infrastructure/osmo-sgsn
User Manuals and VTY reference manuals are [optionally] built in PDF form as part of the build process.
Discussions related to osmo-sgsn are happening on the firstname.lastname@example.org mailing list, please see https://lists.osmocom.org/postorius/lists/osmocom-net-gprs.lists.osmocom.org/ for subscription options and the list archive.
Please observe the Osmocom Mailing List Rules when posting.
Our coding standards are described at https://osmocom.org/projects/cellular-infrastructure/wiki/Coding_standards
We us a gerrit based patch submission/review process for managing contributions. Please see https://osmocom.org/projects/cellular-infrastructure/wiki/Gerrit for more details
The current patch queue for osmo-sgsn can be seen at https://gerrit.osmocom.org/#/q/project:osmo-sgsn+status:open
OsmoSGSN originated from the OpenBSC project, as a separate program within openbsc.git. In 2017, OpenBSC was split in separate repositories, and hence OsmoSGSN was given its own separate git repository.