Enable / Disable ESXi host nic on the fly:
~ # esxcli network nic down -n vmnic1
~ # esxcli network nic up -n vmnic1
Change the FlowControl on the nic
~ # ethtool --pause vmnic1 autoneg on
~ # ethtool --pause vmnic1 tx on rx on
OR OFF
~ # ethtool --pause vmnic1 autoneg off
~ # ethtool --pause vmnic1 tx off rx off
View the Flow Control settings
~ # ethtool --show-pause vmnic1
