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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.

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Introduction to Packet Filtering

Introduction to Packet Filtering

Modular QoS Command-Line Interface (MQC) implements packet filtering.

An untrusted packet is a packet with potential security risks or a packet that users do not want to receive. The packet filtering function allows a device to directly discard untrusted packets to improve network security.

With MQC, a device is configured to identify untrusted packets and discard them, as well as identify trusted packets and permit them to pass through.

MQC-based packet filtering classifies packets more precisely than a blacklist, and is more flexible to deploy.

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Updated: 2019-12-28

Document ID: EDOC1000142089

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