Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

static entry in the mac-address-table

Hello

Please if, I use more than one interface for a unique mac adresse in the command ""mac-address-table static"", in this case, the switch will use the first interface declared or it will forward the frame to the all interfaces configured ??

thanks for help

I have a catalyst 3550 with IOS Version 12.1(13)EA1c

and Catalyst 4506 L3 Switch with IOS Version 12.2(25)EWA6

4 REPLIES
New Member

Re: static entry in the mac-address-table

help

Re: static entry in the mac-address-table

Hi

I think it will replace the earlier configured entry with the new one and it will be used becoz u cannot define a unique mac-address on two interfaces and that would be considered a loop.

Thanks

Mahmood

Re: static entry in the mac-address-table

You cannot configure a switch to have a unicast mac-address on multiple ports static or dynamic. You cannot do this but I am not sure what kind of error you will see or whether it will overwrite the previous static mac entry.

New Member

Re: static entry in the mac-address-table

Hello,

I have this configuration :

SWITCH# sh run

mac-address-table static xxxx.xxxx.xxxx vlan y interface GigabitEthernet0/11 Gi

gabitEthernet0/1

SWITCH#SH MAC-ADDress-table

Mac Address Table

-------------------------------------------

Vlan Mac Address Type Ports

---- ----------- -------- -----

Y xxxx.xxxx.xxxx STATIC Gi0/1 Gi0/11

--More--

in my topology, the host with the mac address xxxx.xxxx.xxxx is connected directly with the port G0/1, but it can be reached via the port G0/11 by anathor switch.

thanks.

263
Views
0
Helpful
4
Replies