Network Design Issue

Hello All,

 

We have an network design issue. kindly suggest.

 

1. We are having two routers , in active active mode i.e both routers are sending traffic to both Lbs.

    

2. Our Lbs are in active standby mode.

    

3. The traffic coming from router2 to second LB(passive one), Lb2 forward it towards LB1 via interLB link.

    

4. The outgoing of both LBs are connected to two firewalls i.e Lb1--->fw1 and Lb2 --->Fw2

    

5. Firewalls are in active standby state.

    

6. Whenever there is logical fail-over happening between firewalls and fw2 become active and we see traffic degradation, on interLB links uneven tarffic distribution(re-tramission)

    

Router1--->LB1---->FW1 | | Router2--->LB2---->FW1

 

Kindly suggest what is wrong here...?