High throughput with high availability

[Michal Pasierb]

Is this setup possible ?

                |                                     |
                |port4                           port3|
          +-----+----+                          +-----+----+
          |          |port2       ISL      port2|          |
          | switch A +--------------------------+ switch B |
          |          |                          |          |
          +---+--+---+                          +-----++---+
         port2|  |port1                           port1|
              |  |        eth0 +-------+ eth2          |
              |  +-------------+       +---------------+
              |                + host1 +
              +----------------+       + 
                          eth1 +-------+

On host1 I want to achieve:
1) high throughput with bond0 (interfaces eth0 and eth1)
2) high availability with bond1, mode active-backup on bond0 active and eth2 backup

Is this setup possible with the bonding driver ?
I did some experiments and it turns out bond1 doesn't work along with bond0.

I'd love to see any input on this one.

[Yanming Peng]

You only need bond0 with eth0-eth2 as slave running on mode 4.

configure port1 and port2 on switch A with LACP group. You will get 2 aggregators. One has 2 ports and the other has 1 port.

If you use bonding v3.5.0 or higher, the 2-port aggregator will be active.