1.CoPP和CPPr
CoPP--Control Plane Policing 是指直接在Control Plane实施的service policy
CPPr--Control Plane Protection 是指在Control Plane的cef-exception，host，transit三个子接口下面实施的service policy
其中，CoPP不需要cef的支持，但是CPPr需要cef的支持，如果关闭cef会有如下提示：
R2(config)#no ip cef
R2(config)#
*Mar 1 00:26:44.431: %CP-4-CPPR_DISABLED: Removing security features on host, transit and cef-exception paths
R2(config)#
*Mar 1 00:26:44.447: %CP-5-FEATURE: Control-plane Policing feature disabled from Control plane host path
2.确定CPPr流量
!
class-map type logging match-any LOG
match packets dropped
match packets error
match packets permitted
!
policy-map type logging LOG
class LOG
!
control-plane host
service-policy type logging input LOG
control-plane transit
service-policy type logging input LOG
control-plane cef-exception
service-policy type logging input LOG
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show control-plane counters
clear control-plane *
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