Is there any reason why I cannot etherchannel a 5508 WLC to a Nexus 77k VPC? (4 links to 77k A and 4 to 77K B

[rich.hamilton]

I am trying to improve my redundancy scheme and want to build a VPC on my 77ks to support my 5508 WLCs.  Is there any reason not to do this?
 

[Abhishek Abhishek]

We do suppport FabricPath with Nexus 7K/5K/6K product line. Both N7K and 77K supports Fabricpath with F-Series line cards and will continue to do so. The same support will continue on Nexus5K/6K switches. Fabricpath as a technology feature is part of the Cisco Unified Architecture and has a great roadmap.

Nexus9K does not support FabricPath as the hardware is designed on Merchant silicon and the ASIC's do not support FabricPath encap/decap on the line-cards . Nexus9K is all together built-in on an ACI architecture to provide the fully integrated and automated network fabric solution driven by Application Network Profile.

We do support vPC and other Layer 2/3 features to integrate the system with  Nexus Products in NX-OS mode. This should work seamlessly. The NX-OS on N9K is an enhanced NX-OS which will provide you with better performance on N9K hardware.

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps13386/white-paper-c11-729987.html

http://www.cisco.com/en/US/prod/collateral/switches/ps9441/ps13386/datasheet-c78-729405.html