No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

S12700 V200R010C00 Configuration Guide - QoS

This document describes the configurations of QoS functions, including MQC, priority mapping, traffic policing, traffic shaping, interface-based rate limiting, congestion avoidance, congestion management, packet filtering, redirection, traffic statistics, ACL-based simplified traffic policy, and HQoS.
Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Priority Mapping Overview

Priority Mapping Overview

Priority mapping is a method of translating quality of service (QoS) precedence fields carried in packets into internal priorities on a device. (Internal priorities are also called local priorities, and are used to differentiate classes of service for packets.) After priority mapping, the switch provides differentiated services for packets based on the internal priorities.

Packets transmitted over different networks carry different QoS precedence fields. For example, the EXP field is used on a Multiprotocol Label Switching (MPLS) network, the 802.1p field is used on a virtual local area network (VLAN), and the DSCP field is used on an IP network. To retain the priorities of packets that traverse different networks, priority mapping must be configured on network devices. When the switch connects different types of networks, it maps external precedence fields (including 802.1p, MPLS EXP, and DSCP) of all the received packets to internal priorities. When the device sends packets, it maps internal priorities to external priorities.

Translation
Download
Updated: 2019-08-21

Document ID: EDOC1000142089

Views: 43458

Downloads: 87

Average rating:
This Document Applies to these Products
Related Version
Related Documents
Share
Previous Next