I have a Nexus N9K-C9236C and I would like to add an other one to have redundancy with vPC fonctionnality (like describe here).
The point is my suppliers don't sell this model anymore because it has reach its EOL.
So the "new" model is the N9K-C9336C and I want to know if the vPC will works between these 2 models.
I didn't see any limitation in the Cisco documentation but my seller says me it's not possible...
If anyone had any information about this situation, I'll be interrested.
Unfortunately, no, this can't be done. The models have to be the same even if they're models in the same family. Here's an answer from a Cisco forum entry on this topic and link to better explain and detail the requirements.
No, it is not supported to have vPC between different families of Nexus, not even between different models from the same family:
The switches in a vPC domain, the peer switches, must be of the same type. For example, you can connect a pair of Cisco Nexus 9300 series switches; but you cannot connect a Cisco Nexus 9300 series switch to a Cisco Nexus 9500 series switch within a vPC domain.
vPC peer switches must also be of the same type. For example, you can connect a pair of Cisco Nexus 9300-EX switches, but you cannot connect a Cisco Nexus 9300-EX switch to a Cisco Nexus 9300-FX switch in a vPC domain. You can find more details about vPC in the config guide (where the above bullets are also present).
