How many mac address for vlan should have in one switch ?

[eigrpy]

Hi In one regular switch or Nexus7000, can we say all vlan use one mac address ? for example, there are 100 vlan, so the switch or Nexus should have one mac address for all 100 vlan ? Thank you

[Jon Marshall]

Not sure what you mean by this.

A switch will keep a record of the mac addresses of all devices in each vlan it knows about so each vlan could have any number of mac addresses.

I suspect you are not asking about that so can you be more specific.

Jon

[InayathUlla Sharieff · Accepted solution]

Hi,

Yes by default all the vlan interfaces on the nexus will be using the same mac address.

Nexus7010# show int vlan 10
Vlan10 is up, line protocol is up, autostate enabled
  Hardware is EtherSVI, address is  0026.981e.fc41

+Nexus7010# show int vlan 20
Vlan20 is up, line protocol is up, autostate enabled
  Hardware is EtherSVI, address is  0026.981e.fc41  >> same mac address as vlan 10.

Regards

Inayath

[eigrpy]

Thank you so much for your reply. I think your answer is good!