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S12700 V200R013C00 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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Overview of Packet Filtering

Overview of Packet Filtering

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

An untrusted packet is a packet with potential security risks or is a one 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 in more precisely than a blacklist, and is more flexible to deploy.

Updated: 2019-04-08

Document ID: EDOC1100065653

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