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Configuration Guide - QoS

CloudEngine 12800 and 12800E V200R003C00

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, and ACL-based simplified traffic policy.
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Configuring Inbound Interface-based Rate Limiting

Configuring Inbound Interface-based Rate Limiting

Context

If rates of traffic sent from users are not limited, continuous burst data from many users congests the network. Inbound interface-based rate limiting controls the rate of traffic entering an interface within a specified range.

Procedure

  1. Run system-view

    The system view is displayed.

  2. (Optional) Run qos car ifg disable

    The system is configured not to count the inter-frame gap and preamble of packets when calculating the incoming traffic rate on an interface.

  3. Run qos car car-name { percent percent-value | cir cir-value [ kbps | mbps | gbps ] [ cbs cbs-value [ bytes | kbytes | mbytes ] [ pbs pbs-value [ bytes | kbytes | mbytes ] ] | pir pir-value [ kbps | mbps | gbps ] [ cbs cbs-value [ bytes | kbytes | mbytes ] pbs pbs-value [ bytes | kbytes | mbytes ] ] ] }

    A QoS CAR profile is created, and rate limiting parameters are configured in the profile.

  4. Run interface interface-type interface-number

    The interface view is displayed.

  5. Run qos car inbound car-name

    The QoS CAR profile is applied to the interface.

    After a CAR profile is applied to an interface, the device limits the rate of all traffic entering the interface.

  6. Run commit

    The configuration is committed.

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Updated: 2019-05-05

Document ID: EDOC1100004202

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