vPC between Nexus and Catalyst

[ereguan23]

Hello everyone, I am new to an environment where there are 2 Cisco Nexus 7K being used as cores and have many vPC to other Cisco non-nexus switches. The switches I am having issues with have the configuration pictured below, where each switch in the stack has 2 links going to the same Nexus switch. My question is, is that the right configuration? Should each link on the stacked switches go to a different Nexus 7K? What I am troubleshooting right now is some mac flapping issues and I was wondering if the way these vPCs connection could be the cause of it. I will appreciate any input anyone can have. Thanks in advance.

[paul driver]

Hello

You really only need two links for resilency and the interconnection and these two links would be in a port-channel on the switch stack and a vpc on the nK7

[balaji.bandi]

As per the diagram the switches are standalone and also connecting using PO ? other than nexus ?

then you need to look at controlled manner for spanning tree.

For vPC like to connect to swtich to nexus you need 1 link to parent switch.

here is the recommended model for reference :

https://community.cisco.com/t5/networking-documents/nexus-vpc-recommendations/ta-p/3130797