Mac-address-table static entry for multiple interfaces

[smezache]

Hi,

I have a 4507R with IOS ver 12.1(12c)EW1. I want to map a mac-address to 2 different ports on the same switch and on the same blade. However, it appears that I am only able to map one mac-address to one port. here is the command I entered:

(conf)mac-address-table static 0001.0243.e6ce vlan 1 int gi5/44 (if entered another interface it is no longer a valid command).

on a 3550 with a newer IOS I am able to enter the same command and add another interface to the list of interfaces I want the mac-address to be mapped to:

(conf)mac-address-table static 0001.0243.e6ce vlan 1 int gi5/44 gi5/43

What do I need to do in order to make this work on the 4507R?

Your help is greatly appreciated.

Thanks

[mchin345]

May I know the IOS used in 3550?. Also, i think you may have to specify the maximum no of interfaces a mac address can be mapped to. But first let me know the IOS used in 3550.

[jarathbu]

Hello,

There is a fundamental architecture difference between the 2 platforms regarding the internal forwarding of frames. With the 3550 the notification packet is sent after a lookup and the results index can contain more than one entry where as with other architectures the results are limited to a single entry. Basically that is why you can configure an ARP entry to point to different ports on the 3550 versus other platforms.

Hope that helps.

Regards,

James