Intermittent ping interruption on S series switch

If an S series switch fails to be pinged intermittently, check whether ICMP packets are discarded by CPCAR.
- If ICMP packets are discarded by CPCAR, ping packets cannot be sent to the CPU. In this case, modify the CPCAR value of ICMP packets.
Note: An improper CPCAR setting will affect services on your network. It is recommended that you contact Huawei technical support personnel before adjusting the CPCAR setting.
-If ICMP packets are not discarded by CPCAR, run the undo icmp rate-limit enable command to disable ICMP rate limit. Then check whether forwarding information for ping packets, such as the returned route, exist on the switch.

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