VIOS: VLAN tagged network redundancy with trunking   

We're trying to achieve a setup with the following requirements:

• trunking of multiple ethernet ports (quad port NIC)
• failover to a backup trunk (hot standby)
• VLAN tagging on the Virtual I/O clients (which means untagged VIOS ports)
• Single VIOS (!). We'd like to save CPU and memory resources.

We can think of these scenario's:

• 802.3AD (LA) with a combination of trunking and failover to a standby trunk <- is this even possible?
• Dual VIOS (does not meet our requirement). Disadvantage: extra system to manage, a little bit more complex
• ?

Any suggestions?

The multiple trunk setup is meant for redundancy in case of quad port NIC and/or switch outage.

So there are two quad port NIC's, one of them should be active and the other one passive. Both have a LA trunk of three interfaces. Hope this will make it a bit more clear.

The question is whether LA supports three active trunked interfaces combined with three passive trunked interfaces. In LA terms: "standard" method combined with "round robin" method in the same LA group.