Mobile user data traffic to/from the core network can be simulated using PureLoad GTP.

Introduction to GTP Support

PureLoad can be used for performance test on node
or network level in a  telecom network. Traffic can be simulated from the Internet side or from within Core Network or Service Network. In order to simulate traffic from the Radio Network side we support sending application traffic over the GTP interface.

The PureLoad GTP consist of a separate server process that run on each load server VM or host. It uses an HTTP/JSON interface to create, update and remove PDP contexts.