QoS Features, Commands, and Changes
Class-Based Traffic Shaping Feature
Cisco IOS Release: Release 12.0(17)SL
Description: The Class-Based Traffic Shaping feature was introduced on the PRE1 to allow you to
control a class of traffic going out an interface in order to match its transmission to the speed of the
remote target interface and to ensure that the traffic conforms to policies contracted for it
Cisco IOS Release: Release 12.2(16)BX
Description: This feature was introduced on the PRE2.
Cisco IOS Release: Release 12.2(28)SB
Description: This feature was integrated in Cisco IOS Release 12.2(28)SB.
Cisco IOS Release: Release 12.2(31)SB2
Description: This command was introduced on the PRE3.
Frame Relay Traffic Shaping Feature
Cisco IOS Release: Release 12.0(17)SL
Description: The Frame Relay Traffic Shaping (FRTS) feature was introduced on the PRE1 to eliminate
bottlenecks in Frame Relay networks by allowing you to configure rate enforcement to either the
committed information rate (CIR) or some other defined value, such as the excess information rate, on
a per-VC basis.
Hierarchical Shaping Feature
Cisco IOS Release: Release 12.3(7)XI
Description: The Hierarchical Shaping feature was introduced on the PRE2 to enable you to shape
traffic at both the VC-level and VP-level.
Cisco IOS Release: Release 12.2(28)SB
Description: This feature was integrated in Cisco IOS Release 12.2(28)SB for the PRE2.
Cisco IOS Release: Release 12.2(231)SB2
Description: This feature was introduced on the PRE3.
Percentage-Based Traffic Shaping Feature
Cisco IOS Release: Release 12.2(31)SB2
Description: This feature was introduced on the PRE3 to enable you to shape traffic based on a
percentage of the available bandwidth.
Cisco 10000 Series Router Quality of Service Configuration Guide
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Chapter 1
Quality of Service Overview
OL-7433-09