BAGG same group on both side for vlan remapping?

[bnt734]

Hello,

Working on 5930 switches (using comware 7), i have a bridge aggregation to connect 2 sites:

interface Bridge-Aggregation2
 port link-type trunk
 undo port trunk permit vlan 1
 port trunk permit vlan 10
 vlan mapping 5 translated-vlan 10
 link-aggregation mode dynamic
 mad enable
 undo stp enable
 stp root-protection

I've noticed that if i don't respect the same bridge aggregation group on both ends, the vlan remapping function is not working (so no communication between the 2 sites)
If i removed the vlan remapping command, then the bagg is working fine.

So my question is quite simple :)

Is it mandatory to use same bridge aggregation group on both ends when we are using advance commands like qos / vlan remapping on it?
I'm not able to find a proper explaination.

Thanks

[bnt734]

Hello,

No idea reagrding the BAGG group to be the same on both side?

I can't find any explanation

Thanks