spuluka, you made me more confused .....
Bridge domains connect multiple interfaces into a layer 2 bridge and is able to bridge different VLAN ids. This allows different VLANs to come in from the network and place them into the same broadcast domain at the SRX. Or it can simple allow multiple interfaces on the SRX to layer 2 bridge and speak to each other.
*It suppose that each vlan will be in a separete Bridge-domain and each bridge domain is isolated from other bridge-domains,
,,so how to make multiple Vlans in the same broadcast,,,
it seem i have a miss-understanding of the concept of bridge-domain itself 😞