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Log Reference

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of logs on the product.
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DEFD/6/CPCAR_DROP_MPU:Rate of packets to cpu exceeded the CPCAR limit on the MPU. (Protocol=[STRING], CIR/CBS=[ULONG]/[ULONG], ExceededPacketCount=[STRING])


The rate of packets delivered to the CPU exceeds the CPCAR limit on the MPU.


Parameter Name Parameter Meaning
Protocol Indicates the protocol type.
CIR/CBS Indicates the committed information rate and committed burst size.
ExceededPacketCount Indicates the number of packets whose rate exceeds the CPCAR.

Possible Causes

The rate of packets delivered to the CPU exceeded the CPCAR limit on the MPU. As a result, some packets are discarded.


  1. Control the rate of packets delivered to the CPU within the CPCAR limit, or run the car packet-type packet-type cir cir-value [ cbs cbs-value ] command to configure a proper CPCAR limit.

    Improper CPCAR settings will affect services on your network. If you need to adjust CPCAR settings, you are advised to contact technical support personnel for help.

Updated: 2019-08-21

Document ID: EDOC1000142069

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