Cisco IOS: access-list logging rate-limited or missed packets

access-control-listciscoioslogging

How do we fix these errors?

2629753: Dec 29 09:03:56.521 EST: %SEC-6-IPACCESSLOGRL: access-list logging rate-limited or missed 2 packets

This is a Cisco 871 router with BVI and access lists.

Best Answer

The message means that an ACL (with, presumably, logging enabled) is generating syslog messages faster than the router is willing to send them off. You'll have to increase the rate-limit, use the logging rate-limit command to do this (you'll probably want to use the ip access-list logging interval command as well).

Then, tweak the rate-limit and interval until lowering them starts generating the rate-limit messages and up them a bit. The exact values will depend on your traffic profile and you may find that you'll have to accept these during traffic peaks.