Modular QoS Configuration Guide for Cisco NCS 5500 Series Routers, IOS XR Release 7.6.x

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Updated:: March 30, 2022

New and Changed QoS Features

Table 1. QoS Features Added or Modified in IOS XR Release 7.6.x
Feature	Description	Changed in Release	Where Documented
Egress Traffic Management	The egress traffic management model employs a two-pass model per NPU core to get up to 50% of NPU core bandwidth as recycle bandwidth. VOQ lookup takes place in the second pass to get the outgoing interface or sub-interface VOQ. This lookup at the second pass enhances the egress queuing policy by making the feature-rich ingress pipeline available to the outgoing traffic.	Release 7.6.1	Egress Traffic Management
Low Rate Shaper	This functionality allows your hardware to program low shaper bandwidth with accuracy.	Release 7.6.1	Low Rate Shaper

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