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Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 1 Quality of Service Overview
QoS Features, Commands, and Changes
Traffic Shaping Overhead Accounting for ATM Feature
Cisco IOS Release: Release 12.2(31)SB2
Description: The Traffic Shaping Overhead Accounting for ATM feature was introduced on the PRE3
to enable the broadband aggregation system (BRAS) to account for various encapsulation types when
applying QoS to packets. Cisco IOS Release: Release 12.2(31)SB5
Description: The Traffic Shaping Overhead Accounting for ATM feature was enhanced to include a
user-defined offset value on the PRE3.
Sharing Bandwidth Fairly During Congestion
Documentation Reference: Chapter 12, “Sharing Bandwidth Fairly During Congestion”
• Bandwidth Fair Queuing Feature, page 1-59
• Class-Based Weighted Fair Queuing Feature, page 1-59
• Class-Based Weighted Fair Queuing for Virtual Access Interfaces Feature, page 1-60
Bandwidth Fair Queuing Feature
Cisco IOS Release: Release 12.0(17)SL
Description: The bandwidth fair queuing feature was introduced on the PRE1 to share bandwidth fairly
among competing traffic.
Cisco IOS Release: Release 12.2(15)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.
Class-Based Weighted Fair Queuing Feature
Cisco IOS Release: Release 12.0(19)SL
Description: The class-based weighted fair queuing (CBWFQ) feature was introduced on the PRE1 to
provide support for user-defined traffic classes based on match criteria including protocols, access
control lists (ACLs), and input interfaces.
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.
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