Hi,
What version of ESXi are you using?
Can you post the output of:
show etherchannel load-balance
and
show etherchannel summary
Also, I notice you said a blade. Taking a look at this article it states:
- ESX/ESXi running on a blade system do not require IP Hash load balancing if an EtherChannel exists between the blade chassis and upstream switch. This is only required if an EtherChannel exists between the blade and the internal chassis switch, or if the blade is operating in a network pass-through mode with an EtherChannel to the upstream switch. For more information on these various scenarios, contact your blade hardware vendor.
Is this relevant to you? If not, this article on NIC teaming using etherchannel leads to intermittant network connectivity might be useful?
Just trying to help with some ideas!