Ip accounting entries range in size from 13 to 28 bytes per entry. You can use the "ip accounting-threshold" global configuration command to set the maximum number of accounting entries to be created.
The accounting threshold defines the maximum number of entries (source and destination address pairs) that the router accumulates, preventing IP accounting from possibly consuming all available free memory. This level of memory consumption could occur in a router that is switching traffic for many hosts. "Overflows" will be recorded; see the monitoring commands for display formats. The default accounting threshold of 512 entries results in a maximumn table size of 12928 bytes.
Thanks for the replies; I now can calculate the memory needed.
I looked at netflow and you are correct, it also is quite granular and it displays the port numbers of traffic as well which is a plus. Problem is that I plan on monitoring traffic flows over some other 2500 series routers with an 11.x version of IOS. i don't think netflow is an option on these routers. Please correct me if I am wrong.
We are pleased to announce availability of Beta software for 16.6.3. 16.6.3 will be the second rebuild on the 16.6 release train targeted towards Catalyst 9500/9400/9300/3850/3650 switching platforms. We are looking for early feedback from custome...