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Static mac entries - can they be aged?

srego4
Level 2
Level 2

I want to enable port security on my access switches (3560) with a limit of 1 mac addresses / port. I can do this fine. However, if I have a hub or a switch connected to my main switch and an end user device connected to this extended hub / switch, the mac address becomes 'static'.

Now if this end user device is plugged anywhere else on my main switch, it gets disabled as the main switch already has this mac  in its cam table as a static entry. I can only use the end user device on antother port if I clear the mac address table.

So my question is, Is there a way to age static entries in the mac tables?

Thanks,

1 Accepted Solution

Accepted Solutions

cadet alain
VIP Alumni
VIP Alumni

Hi,

a secure MAC can't become 'static' if it hasn't been configured so and by default static secure don't age out but you can make them age out indeed.

http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_se/configuration/guide/swtrafc.html#wp1042259

Regards.

Alain.

Don't forget to rate helpful posts.

View solution in original post

2 Replies 2

cadet alain
VIP Alumni
VIP Alumni

Hi,

a secure MAC can't become 'static' if it hasn't been configured so and by default static secure don't age out but you can make them age out indeed.

http://www.cisco.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_25_se/configuration/guide/swtrafc.html#wp1042259

Regards.

Alain.

Don't forget to rate helpful posts.

thanks alain.  that worked just fine for what I wanted.