Feature History For Frame Relay Traffic Shaping; Restrictions And Limitations For Frame Relay Traffic Shaping; Configuration Commands For Traffic Shaping - Cisco 10000 Series Configuration Manual

Quality of service configuration guide

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Shaping Traffic

Using information contained in the BECN-tagged packets received from the network, FRTS can

dynamically throttle (decrease) traffic. When an interface configured with FRTS receives a BECN, it

immediately decreases its maximum rate and holds the packets in the buffers of the router to reduce the

data flow from the router into the Frame Relay network. If, after several intervals, the interface has not

received another BECN and traffic is waiting in the queue, the maximum rate increases slightly. FRTS

decreases traffic on a per-VC basis and adjusts the transmission rate based on the number of

BECN-tagged packets received. The dynamically adjusted maximum rate is called the derived rate.

The derived rate is always between the upper bound and the lower bound rate configured on the interface.

For more information, see the

Feature History for Frame Relay Traffic Shaping

Cisco IOS Release

Release 12.0(17)SL

The following commands are used to configure class-based and hierarchical shaping (see the Cisco IOS

command reference documentation):

For information about configuring Frame Relay and Generic Traffic Shaping using Frame Relay legacy

commands, see the

The Frame Relay Traffic Shaping (FRTS) feature was

introduced on the router.

Frame Relay traffic shaping applies only to Frame Relay PVCs.

shape percent

"Configuring Frame Relay Traffic Shaping" section on page

Cisco 10000 Series Router Quality of Service Configuration Guide

Traffic Shaping

Required PRE

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