3com S7906E 설치 설명서

 

1-2 

Figure 1-1 Unicast transmission 

Host A

Host B

Host C

Host D

Host E

Packets for Host B

Packets for Host D

Packets for Host E

IP network

 

 

Assume that Host B, Host D and Host E need the information. A separate transmission channel needs 

to be established from the information source to each of these hosts.  

In unicast transmission, the traffic transmitted over the network is proportional to the number of hosts 

that need the information. If a large number of users need the information, the information source needs 

to send a copy of the same information to each of these users. This means a tremendous pressure on 

the information source and the network bandwidth.  

As we can see from the information transmission process, unicast is not suitable for batch transmission 

of information. 

Broadcast 

In broadcast, the information source sends information to all hosts on the subnet, even if some hosts do 

not need the information, as shown in