The primary function of a Router is to divide a big Broadcast domain to Multiple smaller Broadcast domain. In other words, Routers will not allow a broadcast from one LAN to cross the Router and reach another Network Segment. Switches by design will forward the broadcast traffic and Routers by design will drop the broadcast traffic. But the Broadcast data is delivered to all connected devices. In Broadcast, there is only one sender and the data is sent only once. In Multicast, the sender transmit only one copy of data and it is delivered and/or processed to many devices (Not as delivered and processed by all devices as in Broadcast) who are interested in that traffic.Įxample : Multicast Windows Deployment Services (WDS) OS deployment traffic, IP TV etcīroadcast is a type of communication where data is sent from one computer once and a copy of that data will be forwarded to all the devices. IP Multicast Groups are identified by Multicast IP Addresses ( IPv4 Class D Addresses) IP multicast traffic are sent to a group and only members of that group receive and/or process the Multicast traffic.ĭevices which are interested in a particular Multicast traffic must join to that Multicast group to receive the traffic. Multicast is a type of communication where multicast traffic addressed for a group of devices on the network. (FTP Server is the sender and your computer is the receiver.) What is Multicast? (Webserver is the sender and your computer is the receiver.)Ģ) Downloading a file from a FTP Server. Figure 1: Two transmit (Tx 1, Tx 2) and two receive. This can be generalized by describing an NxM system, where N is the number of transmitter antennas, M is the number of receiver antennas, and N is not necessarily equal to M. In Unicast type of communication, there is only one sender, and one receiver.ġ) Browsing a website. Commonly used terms such as 2×2 MIMO refer to a configuration with two transmitter antennas and two receiver antennas. Unicast is a type of communication where data is sent from one computer to another computer.

Cisco receiver what is it