Supported Platforms
DiffServ-Aware Traffic Engineering Introduction
Differentiated Services (DiffServ)-aware traffic engineering provides a way to guarantee a specified level of service over an MPLS network. The routers providing DiffServ-aware traffic engineering are part of a differentiated services network domain. All routers participating in a differentiated services domain must have DiffServ-aware traffic engineering enabled.
To help ensure that the specified service level is provided, it is necessary to ensure that no more than the amount of traffic specified is sent over the differentiated services domain. You can accomplish this goal by configuring a policer to police or rate-limit the volume of traffic transiting the differentiated service domain. For more information about how to configure policers for label-switched paths (LSPs), see Configuring Policers for LSPs.
This feature can help to improve the quality of Internet services such as voice over IP (VoIP). It also makes it possible to better emulate an Asynchronous Transfer Mode (ATM) circuit over an MPLS network.
