I have 2 N7Ks
N7K-1 have 2 VDCs, D1 and D2
N7K-2 have 2 VDCc S1 and S2
D1&D2 have vPC configured between them and S1&S2 also have vPCs b/w them.
What is the best practice to interconnect D1&D2 to S1&S2 with redundancy ? I am yet to see a Cisco Doc that discusses this design, Please let me know your suggestions.