C3750-48TS CAM size

VladimirFilippov · ‎08-30-2007

Hi everyone!

I've got stack of 9 C3750-48-TS. Some PC's have connectivity problem.

For example: I see interface status connected but I don't see PC's MAC-address on this interface.

When I use

show mac-address-table count

command, I've got:

Total Mac Address Space Available: 0

I guess here the problem is. May be it's possible to increase CAM table size somehow?

VladimirFilippov · ‎08-30-2007

Hi everyone!

I've got stack of 9 C3750-48-TS. IOS 12.2.37-SE (ADVANCED IP SERVICES). Some PC's have connectivity problem.

For example: I see interface status connected but I don't see PC's MAC-address on this interface.

When I use

show mac-address-table count

command, I've got:

Total Mac Address Space Available: 0

I guess here the problem is. May be it's possible to increase CAM table size somehow?

Joseph W. Doherty · ‎08-30-2007

"May be it's possible to increase CAM table size somehow?"

PS:

Does your L2 domain extend beyond just the one stack of 9?

VladimirFilippov · ‎08-30-2007

This stack is a part of L2 domain. If I understood you right.

Sorry my bad English, it isn't my native language.

VladimirFilippov · ‎08-30-2007

I found solution by decreasing mac-address table aging time from 300 sec to 60 sec.