Switchport config and ESX - Etherchannel

[Marco Soeder-Schuettler]

Hi all,

hope somone can help and explain me the following configuration situation.

In an existing network are multiple ESX Server. All ESX Server have the same network configuration.

VMNIC3 on Switchport 1/0/33
VMNIC4 on Switchport 1/0/29
VMNIC5 on Switchport 1/0/37

There is no Portchannel configuration on Cisco Switch Catalyst WS-C3750X-48

-----

port-channel load-balance src-dst-mac
!
interface GigabitEthernet1/0/29
 snmp trap mac-notification change added
!
interface GigabitEthernet1/0/33
 snmp trap mac-notification change added
!
interface GigabitEthernet1/0/37
 snmp trap mac-notification change added

-------

All works fine, why doesn´t need Etherchannel Trunk?

Regards Marco

[Reza Sharifi · Accepted solution]

Hi,

You don't necessarily need a Portchannel when connecting ESX servers.  If the VMNICs are configure with HA and if one link fails the others take over and forward traffic. You only need a trunk if you are passing multiple vlans from ESX host to the switch if not you don't need it.

HTH