Hello,
This is probably a question for cisco, but I find lots of answers to these types of questions here so I thought I'd start here first. I have recently installed the nexus 1000v in a lab, in a dell m1000e chassis with four m610 blades running vsphere 5.1. After the pain of installing it and seeing everything working well enough, I went to search for best practices. Each blade has just the 2 LAN on motherboard ports. They are all members of the nexus 1000v (so 8 vmnics) port profile for uplinks. In the Nexus 1000v their port profile sets them for channel-group auto mode on mac-pinning. I'm reading it is better to use LACP. Here is my question that has me a little confused: would I put all the internal ports on the switch blades (G1/0/1, G2/0/1, G1/0/2, G2/0/2, etc for all 8) in to the same channel group? Or would each pair of ports (G1/0/1 and G2/0/1) for each blade be in their own group? To my understanding, LACP can have a max of 8? So if the chassis were fully populated, that'd be 32 ports, so it seems it wouldn't work? Looks to me like the Nexus 1000v tucked the pairs of vmnics (vmnic0 and vmnic1) in to their own channel groups, so that seems to make more sense that I'd have 4 port channels on the physical switch blades, for each host. I might have made this a confusing question, so feel free to ask for clarification. Configs are on a classified system, but I can do my best to post them without naughty info.
Justin