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CLI-based Configuration Guide - QoS

AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009

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What Is the Function of Interface Priorities?

What Is the Function of Interface Priorities?

The port priority command sets the interface priorities, that is, specifies the default priorities of incoming packets on the interface. AR series routers send packets to different queues based on the interface priority. By default, the AR interface does not trust packet priorities. Packets enter queues according to the interface priority.

If all packets enter queues according to the interface priority, all packets on an interface enter the same queue. Differentiated services cannot be provided. Using the trust command, you can specify the priority to be mapped for packets, that is, search for a priority mapping to the packet priority in the priority mapping table.
  • The AR120-S&AR150-S&AR160-S&AR200-S series, AR1200-S series, and AR2204-S send packets to different interface queues based on the mapped 802.1p priorities, and use the queue scheduling to provide services for packets with different priorities.
  • The AR2220-S, AR3200-S, and AR2240-S send packets to different interface queues based on the mapped local priorities, and use the queue scheduling to provide services for packets with different priorities.
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Updated: 2019-05-17

Document ID: EDOC1000174115

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