Hi, I'm having a bit of trouble creating a trunk to a ESXi v4.1 host.
My config on the switch
interface GigabitEthernet3/29
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 100,300
switchport mode trunk
switchport nonegotiate
spanning-tree portfast trunk
ESXi side the VLAN ID was set to All (4095) - Both the switch and host side configurations dropped the host from vCentre.
Setting the switch interface to an access port on VLAN100, the host will stand up fine. Problem being I need another network to be accessed (VLAN300)
interface GigabitEthernet3/29
switchport access vlan 100
switchport mode access
spanning-tree portfast
end
I am able to enable a second adapter on the host and set it up as a trunk like above, seems to work fine, although I have not got a vm up on it yet to test 
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My query is, how do we go about allowing multiple VLANs to a ESXi host on a single adapter? What am I missing here...
Thanks in adavance,
Brendan