Hub
- Hub is used in star topology.
- It just connect multiple nodes as a connector.
- Works at physical layer.
- RJ – 45 ports – 4, 8,16,24.
- Heavy collision and broadcasting.
- It works in half duplex mode.
- Maximum speed – 10 Mbps
If you want to know more about SSL , please check on https://www.javatpoint.com/hub
Switch
- It is almost similar to Hub in structure.
- It has RJ-45 ports.
- It is available with 4, 8, 16, 24, 48, 96, 128 ports.
- Switches are available with 100Mbps, 1000Mbps or 10Gbps speed.
- It works in full duplex mode.
- Switch works at layer 2 and 3 both.
- It creates MAC Table / CAM table /Filter Table
- It has multiple broadcast domain and collision domain.
If you want to know more about SSL , please check on https://www.javatpoint.com/java-switch
Router
- Router is used for communication between two or more different network that are based on different subnet of IP address.
- It is a Layer 3 device.
- It is an OS based device.
- It creates routing table in which it keeps best route information for different destination network.
- It can filter data packets.
- It has different types of ports like Fast Ethernet, Gigabyte Ethernet, serial port, ISDN port, console port etc.
If you want to know more about SSL , please check on https://www.javatpoint.com/router
Modem
Modem stands for Modulator and Demodulator. A modem is a network devices that connects your LAN and WAN. A modem converts the digital data signals into analog signal .A modem is what brings the internet into your home or business. A computer only reads digital signals. the internet only reads analog signals. modem demodulates incoming analog signals into a digital signal. modem modulates outgoing digital signals into an analog signal.
If you want to know more about SSL , please check on https://en.wikipedia.org/wiki/Modem
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