I have a bonded interface running in mode 1 which is active/passive and no issue with this. I need to change it to mode 0 for active/active setup. Does mode 0 is dependent on the switches configuration? My setup is: 2 links from bonded interface is connected to different switches. 

When I change to mode0 from mode1 , bond0 is not coming up.

These are the steps I performed

1) changed to options bond0 mode=0 miimon=100 from options bond0 mode=0 miimon=100
2) modprobe bonding
3) service network restart


Thanks !
Paras.