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New Member

MAC address table size in Catalyst WS-C3750G-24TS

Hi all

According to the catalyst 3750 datasheet, we would be able to configure up the MAC address table size to 12K entries.

1st question: How could I find the actual size of our MAC address table ?

2nd question: How could we do that ?

Thanks for your help ...


Cisco Employee

Re: MAC address table size in Catalyst WS-C3750G-24TS

Hi Francois,

To see the maximum size you can fit in mac-address table

you can use the following command :

lan-3750-1# sh sdm prefer

The current template is "desktop default" template.

The selected template optimizes the resources in

the switch to support this level of features for

8 routed interfaces and 1024 VLANs.

number of unicast mac addresses: 6K

number of IPv4 IGMP groups + multicast routes: 1K

number of IPv4 unicast routes: 8K

number of directly-connected IPv4 hosts: 6K

number of indirect IPv4 routes: 2K

number of IPv4 policy based routing aces: 0

number of IPv4/MAC qos aces: 0.5K

number of IPv4/MAC security aces: 1K

----> here mac-address table size if 6k.

and you can tune it to another profile using : sdm prefer ... config command

More info in :

TO see the actual number of mac in the table use : sh mac-address-table count

New Member

Re: MAC address table size in Catalyst WS-C3750G-24TS

Thank you ...