Osmocom UE/MME/SGW/SGSN side GTP-U Implementation with control/user plane separation https://osmocom.org/projects/osmo-uecups
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osmo-uecups - Osmocom UE simulation control/user plane separation

This repository contains a C-language implementation of a simulator for the SGW/MME/UE side of GTP-U. It is part of the Osmocom Open Source Mobile Communications project.

This code is primarily intended to be used in testing of 2G/3G/4G GGSN and P-GW.

Every GTP tunnel (corresponding to a PDP context or EPC bearer) is terminated in a local 'tun' device, which in turn is put into its own network namespace.

This means you can simulate any number of users / sessions / bearers on a single machine without any routing nightmare.

The code only implements the user plane (GTP1U), and not the control plane like GTP1C or GTP2C. osmo-uecups-daemon exposes a JSON-over-SCTP protocol calleD UECUPS, which allows any external control plane instance to add/remove tunnels in the daemon


The official homepage of the project is https://osmocom.org/projects/osmo-ggsn/wiki/osmo-uecups

GIT Repository

You can clone from the official osmo-bts.git repository using

git clone https://gitea.osmocom.org/cellular-infrastructure/osmo-uecups

There is a web interface at https://gitea.osmocom.org/cellular-infrastructure/osmo-uecups



Mailing List

Discussions related to this software are happening on the osmocom-net-gprs@lists.osmocom.org mailing list, please see https://lists.osmocom.org/mailman/listinfo/osmocom-net-gprs 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-uecups can be seen at https://gerrit.osmocom.org/#/q/project:osmo-uecups+status:open