Cisco command configuration Tip 4: Using ACL to control debug output

Using the DEBUG command can help us ts, but using the DEBUG command will usually output a lot of information, many of which are unnecessary and cause high CPU load, in this case, we can limit the debug output.

 

You can apply the ACL to debug to limit that only the required debug information is output.

For example, to view only ICMP packets from 1.1.1.1 to 1.1.1.2:

Router (config) # access-list 100 permit ICMP Host 1.1.1.1 host 1.1.1.2

Router # debug IP packet detail 100

This article is from the "Cisco technical exchange" blog. For more information, contact the author!