concern: how to configure the Virtual Connect (Downlink) in accordance with vSphere feature about LACP.
What i came to know :
VMware provides a number of different NIC teaming algorithms, any of the available algorithms can be used, except IP Hash. IP Hash requires switch assisted load balancing (802.3ad), which Virtual Connect does not support 802.3ad with server downlink ports.
HP and VMware recommend using Originating Virtual Port ID with Standard vSwitch, and Physical NIC Load when using vDS and NetIOC,
See: HP BladeSystem Networking Reference Architecture