关于icmp rate limit，默认是不会打开这些rate lim

关于icmp rate limit，默认是不会打开这些rate limit的，通常limit的配置需要显式添加。
只要icmp目标地址是三层交换机上的ip，都由本机cpu处理，是有icmp rate limit的。
control plane protection，简称copp。

結果 (英文) 2:

About icmp rate limit, the default is not open these rate limit, the limit of usual configuration requires explicitly added.
As long as the destination address is ip icmp three switches on the machine by cpu processing, there is a icmp rate limit.
control plane protection, referred copp.

結果 (英文) 3:

About ICMP rate limit, the default is not open these rate limit, usually limit configuration requires explicit add.As long as the ICMP target address is three layer switch on the IP, are handled by the native CPU, is a ICMP rate limit.Control plane protection, referred to as copp.