Overview of SAC

Definition

Smart Application Control (SAC) uses service awareness (SA) technology to quickly and accurately identify the applications to which packets belong. Then, fine-grained intelligent traffic steering, QoS, application experience optimization, and security policies can be implemented accordingly.

SAC application identification can be implemented using the following methods:

• First-packet identification (FPI): It identifies an application by matching the first packet of the application.
• SA: It identifies an application by matching multiple packets of the application.

Purpose

As network and multimedia technologies develop fast, network applications become diversified and bandwidth resources are increasingly insufficient. In particular, P2P technology is widely used. Many P2P applications may even abuse network resources, causing network congestion. When both P2P traffic and traffic of key applications are transmitted, non-key services occupy much bandwidth, core service packets are lost, delay and jitter are uncontrollable, and service quality cannot be guaranteed. To implement differentiated policy control on various applications, key applications and non-key applications must be accurately identified. As such, SAC is introduced to accurately identify applications so that you can customize intelligent traffic steering, QoS, application experience optimization, and security policies for specific applications.