Studying for ENCOR, I came across this material on CoPP. The bolded text is what confused me. Why would you reverse the access lists from permit to deny? It seems like the embedded packet capture is all you need to discover what traffic is associating with the default class.
Any input is appreciated
Verifying the CoPP Policy After the policy map has been applied to the control plane, it needs to be verified. In Example 26-37, traffic matching CLASS-CoPP-Routing has exceeded the configured rate. In addition, the default class sees traffic. To identify what is happening, EPC could be used again to tweak the policies, if necessary. This time, the access lists can be reversed from permit to deny as the filter to gather unexpected traffic.
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Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.