Does this vPC topology work?

[CiscoBro]

Two Nexus 5596 are vPC peers and vPC is up and successful.

Upstream is Nexus 7k 

Between 5k and 7k there is double sided vPC, meshed ethernet 10G connections.

Now 

One HP C7000 servers connect to Nexus 5k

HP C7000 has two fabric , Fabric A (4 Nic)  , Fabric B (4 Nic)

So each fabric has 4 nic

All 4 links for Fabric A goes to N5k1 

All 4 links for Fabric B goes to N5k2

On N5k side these 4 links are port-channelled, LACP

Do i need to enable vPC on this port-channel.

F.Y.I i tried this and all ports on that port channel went down saying

"standalone appliance vPC error , or something like that"

Question,

Does server need to have a full mesh to enable vPC?

Hope you understood the concern.

Crude diagram is also attached

Thanks in Advance

[glen.grant]

  If you are going to have both sides hot and load sharing then yes you need to setup the port channel as a VPC . 

[Ganesh Hariharan]

Hello ,

I would recommend a slight change with your setup for high availabilty.

With fabric A  & B :- Connect two ports with N5k1 and two ports N5k2 and configure in HP chassis shared uplink sets for those interface and same set of confgiration for rest of the ports which goes uplink to N5k2.

LACP need to be confgured at Chasis port set to make the vPC and Port Channel up.

By having this setup you have dual uplinks to N5ks in case of one link goes down from fabric uplink the rest is always availble to N5k2.

And you can configire Active-Active or Active-Passive at Chassis level to have maximum bandiwdth.

With N5ks:- You can have multi chaisis vPC to support these port channel with LACP protocol for traffic traversing.

Hope it Helps..

-GI

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[Murad]

I would highly recommend to go through the following doc:

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

I hope it will be clear to you after that and more....

Why don't you run fabricpath between 5K and 7K?