vPC among VDC on Nexus7K

[Bharat Negi]

Hi

Please find attached the diagram.  I am somehow convinced that the solution will work.  Still looking for an expert advise on the limitation of the solution or any other best possible way of acheiving the outcome.

  

Regards

Bharat

[sean_evershed]

I can't see any peer-keep alive links in your diagram.

Also, for clarity are you trying to achieve double sided vPC? If the answer is yes then the real purpose of this design is to create a large Layer 2 domain. Check these three links concerning vPC.

http://www.cisco.com/c/en/us/products/collateral/switches/nexus-5000-series-switches/design_guide_c07-625857.html#_Toc271759465

http://bradhedlund.com/2010/12/16/routing-over-nexus-7000-vpc-peer-link-yes-and-no/

http://www.cisco.com/c/dam/en/us/td/docs/switches/datacenter/sw/design/vpc_design/vpc_best_practices_design_guide.pdf

In vPC designs, you should make sure to include a Layer 3 link or VLAN between the Layer 3 switching vPC peers so that the routing areas are adjacent. This suggests that you will need Layer3 links between all four VDCs.

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