Can somebody tell me if this would work? And how one would go about it? I'm leaning 90% towards using managed switches, but this is intriguing to me none the less.
Take 2 linux servers and put 3 NICs in each one.
Connect the two linux servers on Eth0 (there can be a switch in between).
Connect eth1 on each server to a subnet (192.168.10.0/24) and eth2 to another subnet (192.168.20.0/24).
Tag traffic on eth1 with VLAN1 and inbound traffic on eth2 at VLAN2.
Create a VLAN trunk between the two servers on eth0?
Would this work? Has anybody seen a howto anywhere?