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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Introduction to Priority Re-marking

Introduction to Priority Re-marking

MQC is used to implement priority re-marking.

The priority determines the packet scheduling or forwarding sequence. Packets of different types are scheduled or forwarded based on priorities.

Priority re-marking technology increases or reduces the priority to change packet transmission. For example, priority re-marking technology re-marks 802.1p priorities in VLAN packets so that the device schedules or forwards VLAN packets based on the re-marked priorities. This changes transmission of VLAN packets on the Layer 2 network.

This document describes how to use MQC to implement priority re-marking. Priority re-marking allows the device to re-mark priorities of packets matching traffic classification rules. The packets that require a short delay and high service quality can be re-marked with a high priority so that the packets can be preferentially scheduled or forwarded. Similarly, the priority of packets that have no special requirements on the delay or service quality can be reduced so that the device provides sufficient network resources for high-priority packets.

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Updated: 2019-08-09

Document ID: EDOC1000041694

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