Chapter 12. Configuring Generic Traffic Shaping

This chapter describes the tasks for configuring QoS Generic Traffic Shaping (GTS) on a router. To locate documentation of related commands, you can search online at


GTS is not supported on ISDN, tunnel, and dialup interfaces. Traffic shaping is not supported with optimum, distributed, or flow switching. If you enable traffic shaping, all interfaces will revert to fast switching.

GTS Configuration Task List

To configure GTS, perform the tasks described in the following sections:

  • Configure GTS

  • Configure GTS for an Access List

  • Configure Adaptive GTS for Frame Relay Networks

  • Monitor the GTS Configuration

The section "GTS Configuration Examples" later in this chapter contains examples ...

Get Cisco IOS™ 12.0 Quality of Service now with the O’Reilly learning platform.

O’Reilly members experience live online training, plus books, videos, and digital content from nearly 200 publishers.