Ericsson Service Aware Support Node

The Service-Aware Support Node (SASN) is the Ericsson tool for high performance stand alone traffic inspection.

Widely deployed throughout the world it has been the clear choice for smart traffic management in multi-vendor and multi-access networks.

However, along the network transformation process, classical nodes are evolving into virtual functions where each specifc function can be dynanically dimensioned and instantiated. Therefore, in the cloud, SASN function as TDF/PCEF is being dramatically empowered with a complete new landscape of opportunities (check vSASN commercial argumentation below).

In addition to mobile deployments, SASN is also reinforcing its fixed line proposition together with the Ericsson SSR BNG. The SASN is the Ericsson offering for traffic inspection -also- in fixed line.

On top of that, SASN is a key node of the SDN solution, playing roles both in the control plane providing different sets of information to the BBSC and SDN controller and deployed in the service chain (either as a TDF or as a VAS).

And last but not least, combining SASN traffic deep insight with its strong reporting capabilities, make SASN one of the upmost suitable tools to deploy a business inteligence framework in the operators networks.

All of the above can be deployed in a unique way thanks to SASN flexibility getting at the same time the best performance among the competence.

Gain visibility and control

The combination of flat-rate offerings and peer-to-peer applications poses an increased risk for you as an operator in terms of securing a positive user experience for subscribers and getting a sound return on their investments.

The real-time functionality provided by the SASN gives you greater control of the resource allocation, and truly flexible charging options. When implemented together with our Service-Aware Policy Controller, traffic from individual subscribers and specific applications can be managed to optimize the utilization of network resources.

Traffic inspection is the foundation for this functionality. It is based on advanced deep-packet inspection mechanisms and heuristic analysis (similar to pattern recognition), and enables identification of virtually any type of application. The software is continuously developed to support the identification of new protocols and applications as they are introduced.

Encryption is one additional threat for operator's role as smart traffic management agent. Within this field, SASN is working in different fronts to keep operators traffic management capabilities while securing users and contents anonymity (check with SASN product management and market support for available options).

Generating new revenues

Today's users want fair, transparent charging that makes sense to them. The SASN helps make this possible.

Traditionally, data services have been charged according to traffic volume. The SASN allows you to take content, effective usage time and events into consideration. This can then be used to provide charging models that best reflect the value of the services being offered.

As well as attracting new subscribers, this type of fair pricing can increase usage while securing loyalty and keeping churn on a minimum level.

The statistical features of the SASN also provide the means to evaluate the effect of marketing campaigns - information that can be used to further improve service offerings.

Subscriber personalization is a concept that is no longer applying only to mobile networks, fixed line technology is evolving so that personalized services can be provided to subscribers independently of the access network. SASN, as convergent TDF, is the key node to provide a unified network behavior to the subscribers.

Full range of capabilities

The SASN is one way to implement the traffic inspection engine of our Service-Aware Charging and Control solution. The engine can be integrated in a stand-alone TDF (SASN) or in our gateway Evolved Packet Gateway(EPG). It is a key component in our Evolved Packet Core offering.

As a stand-alone node, the SASN can easily be implemented in multi-vendor and multi-access network environments. It sits alongside the gateway nodes mentioned above in GSM, WCDMA and LTE core networks - or the Packet Data Support Node (PDSN) in CDMA networks - and with BNG in fixed line deploymewnts, interworking with policy control and charging elements.

The capabilities of the node include: 

  • Traffic inspection for the widest range of protocols
  • Policy control (e.g. Usage Monitoring Control)
  • Advanced traffic management
  • Content filtering and insertion
  • Collection of statistics
  • Support for real-time charging
  • Support for post-paid and pre-paid users
  • Service usage reporting
  • Flow and KPI information reporting to SDN control plane
  • ...