для Cisco Cisco ASR 920-4SZ-A Router
Revised: December 1, 2016,
Quality of Service Configuration Guidelines
This document outlines Quality of Service features and limitations available on the Cisco ASR 920 Series Routers and contains the
following sections:
following sections:
Quality of Service
QoS refers to the ability of a network to provide improved service to selected network traffic over various underlying technologies
including ATM, Ethernet and 802.1 networks, SONET, and IP-routed networks. In particular, QoS features provide improved and
more predictable network service by implementing the following services:
including ATM, Ethernet and 802.1 networks, SONET, and IP-routed networks. In particular, QoS features provide improved and
more predictable network service by implementing the following services:
• Supporting guaranteed bandwidth
• Improving loss characteristics
• Avoiding and managing network congestion
• Shaping network traffic
• Setting traffic priorities across the network
For more information about Quality of Service, see
.
Quality of Service Configuration
This document provides details on the platform-dependent implementation of QoS on the Cisco ASR 920 Series Router. For information
about how to understand and configure QoS features, see
about how to understand and configure QoS features, see
.
QoS Support Overview
Table below provides an overview of QoS feature support on the Cisco ASR 920 Series Router. For more detail about the support
for each feature, see
for each feature, see
Global QoS Limitations, on page 6
.
Table 1: QoS Feature Overview
Member Link
Port- Channel
Trunk EFP
Service Instance
Main
Feature
3.6
3.6
3.6
3.6
Dynamic policy
modification
modification
3.6
3.6
3.6
EFP QoS Support
Classification
3.5
3.5.1
3.5
Ingress
4