VMware ESX 3.5

Hi,

I am going to install solaris cluster 3.2 in vmware esx 3.5 for demo, for cluster we need two different network interfaces for private and pubic connectivity, but we have single ethernet controller
how to create two different ethernet instance name with single ethernet controller in vmware esx 3.5 server

Example: current interface is pcn1 and i need to create one more interface e1000 with same controller

Thanks
Rjs

set up 2 virtual switch in ESX sever.
switch #1 linked to physical NIC,for public external access
switch #2 no physical NIC linked. for inter-vms communication.