Aci leaf switch is not learning mac address of vm

[DharmenderKumarChaudhary89053]

Hi everyone 

Aci leaf switch is not learning mac address of vm

What could be the possible reason  ?

[Sergiu.Daniluk]

Hi @DharmenderKumarChaudhary89053,

You need to give us a bit of context in order to be able to answer your question:

• is this a new setup?
• was it working before?
• do you have VMM integration?
• it's only one VM, multiple VMs, or all VMs affected?
• do you see the MAC (EP) learning problem present for physical servers as well?
• which generation of leaf switches do you have in your setup?

Generally speaking you can suppress EP (MAC) learning by using one of these:

• disable Endpoint Data-plane Learning option under BD 
• enable Limit IP Learning To Subnet

Cheers,

Sergiu

[Gaurav Gambhir]

Here is endpoint learning white paper, this should have everything you need to know about endpoint learning in ACI

https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-739989.html

Once you are able to follow the logic, will be able to provide some usable information to us so we can help you out.