Excessive broadcast traffic can cause network congestion, and cause systems within that broadcast domains to be slowed down by having to process large amounts of packets.
consumes network bandwidth
increases overhead on network
interrupts other host functions
Excessive broadcasts can cause bandwidth contention, collisions (on older networks) and can potentially cause issues by needlessly consuming resources on hosts.
excessive broadcast traffic cause congestion in network which leads to collision
Excessive broadcasts, and using hubs instead of switches or routers to segment the network.
Network capacity taken up by broadcasts cannot be used by normal network traffic, and because broadcast domains are not (by default) broken up by switches (only routers) they typically affect large numbers of hosts simultaneously.Users will complain of slow or unavailable network response if it gets too bad.
Complex address schemes
A Hub is the only network device for this type of job. Since a router stops broadcasts, it segments a network in a way. On the other hand, a switch does forward broadcasts but it creates segments because each switch port can be a network on their own.
Limited Broadcast - Sent to all NICs on the some network segment as the source NIC. It is represented with the 255.255.255.255 TCP/IP address. This broadcast is not forwarded by routers so will only appear on one network segment.Direct broadcast - Sent to all hosts on a network. Routers may be configured to forward directed broadcasts on large networks. For network 192.168.0.0, the broadcast is 192.168.255.255.
-They let two network segments appear as one network to connected workstations. -Their primary function is to keep traffic for one segment away from the other segment.
populated segments a network segment that contains ends nodes,such as work stations. unpopulated segments a network segment that does not contain end nodes, such as workstations. Unpopulated segments are also called link segments.
Although some would suggest that a switch could segment a network (and it does use the MAC address for switching) more properly a bridge would be the answer if you are speaking of segmenting a network.
Repeaters and Hubs
segment backbone
All data on that network segment.
To do that, an additional device is required, a network hub or a network switch, which all computers in the network segment should have to be connected to.