Cisco CCNA (640-553) Security Training
Using the “cache max” command
By Charles Ross CCNA - CCNP #CSCO10444244
In today’s article, I’m going to quickly inform you about the Cisco IOS AAA filter configuration mode command named “cache max”.
CCNAs (like you) use the “cache max” command to limit the total number of entries that a cache can maintain for a particular server.
In other words, you can use this command to indicate the maximum number of entries a router’s cache can have at any given time.
Note: If you decide not to use the command; a Cisco router can hold 100 (AAA) entries by default.
Below is the command’s syntax:
cache max number
As you can see, the command only uses the number argument; and it’s used to indicate the maximum number of entries the router’s cache can maintain. The number argument value can be any value from 0 to 429467295.
Below is an example of the command being used:
Router>enable
Router#configure terminal
Router(config)#aaa cache filter
Router(config-aaa-filter)#cache max 120
Router(config-aaa-filter)#end
Router#copy run start
In the example above, the router’s (AAA) cache will be able to maintain 120 entries.
And, like with mostly all Cisco IOS commands; you can use the word “no” in front of the command to remove (disable) the configured command; like you see below:
Router(config-aaa-filter)#no cache max 120
By the way, if you decide to use the command, make sure your router(s) is running Cisco IOS 12.2(13)T or higher.
I hope this article was very informative and helped you quickly understand the usage of the cache max command. If you need to learn more; I suggest you visit my website, (www.ccnaittechtips.com) were you’ll find the latest information regarding the Cisco CCNA (640-553) Security exam techniques.
To your success,
Charles Ross
CCNA- CCNP #CSCO10444244