I am recently brushing up my computer network knowledge, and came across a seemingly peculiar statement:
A network bridge divides a network into smaller broadcast domains.
As far as I could grasp the details, a bridge operates on the two lower layers of the ISO OSI model - the physical and the data link layers. What this means is bridge selectively forwards data link frames on the basis of the destination MAC address that can be found on each received frame.
But, the doubt arises when we consider the fact that the broadcasts are achieved using a broadcast IP address of that particular network. Now, due to the broadcast address being an entity/property of the network layer, should principally be not paid attention to by the bridge, and be flooded into all the interfaces available to it.
Then, how exactly does the bridge manage to filter the broadcast packets?