I am setting up a Dell 6248 combining separate switches used previously. I am planning the following architecture:
VLAN 1 - External traffic (each server's public interface connects to this)
VLAN 2 - Internal communications (server to server via GiGe - each server's internal interface connects to this. This network is a 192.168.1.* range
VLAN 3 - iSCSI network - 192.168.2.* range (iSCSI participating servers have an interface connecting to this along with the iSCSI device
VLAN 4 - iSCSI secondary/MPIO network - 192.168.3.* (iSCSI participating servers and iSCSI device connected)
My question is in the scenario above, is it even required to separate any of these into separate VLAN's or does the switch automatically manage who can handle what? Secondarily, if public is it's own VLAN, can VLAN's 2, 3, and 4 be a single VLAN or does 192.168.1, 192.168.2, and 192.168.3 require VLAN isolation?