Adax GTP

Protocol Acceleration for High Capacity and Performance in 3G, 4G, 5G, IoT and M2M Networks

GTP (GPRS Tunnelling Protocol) is a UDP/IP based tunnelling protocol used within the core radio control network of 2.5G (UMTS), 3G (GPRS) and 4G (LTE) and 5G cellular networks. GTP consists of two separate protocols: GTP-U which is the data plane protocol which tunnels data packets within the core network and GTP-C which is the control plane protocol, responsible for setup and teardown of GTP-U tunnels.

As network capacity increases so does the need for security and reliability. Adax GTP software, and its sister product, SCTP/T, are designed to meet the exploding capacity demands of cellular networks, especially from IoT and M2M. This particularly impacts GTP-U and the encapsulation and de-encapsulation of packets, PDP context requests and responses, and packet header insertion and enhancement.

Accelerating GTP tunnels and offloading GTP data traffic is a critical requirement in the performance of cellular networks, especially for traffic management, policing and load balancing in the core network. Removing bottlenecks in the network increases performance and traffic policing improves Quality of Service.

User Plane and Control Plane Protocols in 4G Networks

4G user plane protocols4G Control Plane protocols


Adax GTP Protocol Software Features

  • Can be deployed as a virtual network element on a variety of different commercial cloud computing providers
  • Support for Multiple APNs and for Overlapping Addresses for MS devices
  • Interworking between IP and GTP-U (GTP Tunnel termination)
  • Termination and Relay per PDP context for Mobile Data Offload (GTP Bypass)
  • Interworking between two separate GTP tunnels (GTP Relay)
  • GTP-U Echo Requests/Responses can be terminated to the host, relayed to another GTP tunnel, processed automatically, or discarded
  • GTP User Library provides loosely coupled application interface enabling user applications and GTP-C stacks to be implemented on the same machine or on different virtual machines in the cloud
  • Traffic Policing support for ingress and egress packets. Including DSCP copying and/or remarking and six different Token Bucket Traffic Policing algorithms.
  • Support for millions of PDP contexts subject to system configuration
  • Support for PDP context statistics indications
  • Support for PDP context lifetime indications
  • IPsec to GTP interworking
  • Supports GTPv1-U (GPRS Tunneling Protocol User Plane Version 1) as specified in 3GPP TS 29.060 and TS 29.281

Adax GTP datasheet

Adax SCTP/T datasheet

Application Areas

Core Network Performance Acceleration:
– 4G PGW, SGW and MME enhancement
– 3G SGSN and GGSN enhancement
– ePDG for secure access to 4G core network
– Load Balancing, Backhaul & Aggregation
– QoS Traffic Management and Policing

IoT and M2M for Cellular networks:
– Vehicle telematics ‘connected car’
– Industrial automation, monitoring and control
– Intelligent transport systems
– Smart homes and buildings
– Healthcare