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NETWORKING DEVICES, NOTE: - Coggle Diagram
NETWORKING DEVICES
ROUTERS
- NETWORK LAYER DEVICE
- Router can check MAC Address as well as IP Address
- Filtering (using routing table)
- NO COLLISION DOMAIN
Router uses routing table They share data via BGP (Border Gateway Protocol) which lets them learn about the most optimal paths to forward traffic
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REPEATERS
- PHYSICAL LAYER DEVICE
- Forwarding
- NO FILTERING
- COLLISION DOMAIN - n
It is a signal booster, it regenerates the incoming signal from the sender before transmitting it to the repeater
HUBS
- PHYSICAL LAYER DEVICE
- Multiport Repeater
- Forwarding
- No filtering
- Collision Domain - n
A Hub is a device that allows for connections from many computers at once. It broadcasts data to every other computer connected to it.
BRIDGES
- DATA LINK LAYER DEVICE
- FORWARDING
- FILTERING
- Less Collision Domain
- TWO PORT DEVICE
CONNECTS TWO DIFFERENT LAN's i.e. it can connect one lan with the bus topology and the other with the star topology They make use of bridge unit protocol. They make spanning trees to avoid the packet from being stucked in loops
SWITCHES
- DATA LINK LAYER DEVICE
- MULTIPORT BRIDGE
- FULL DUPLEX LINKS
- Traffic is minimal
- COLLISION DOMAIN IS ZERO
It can actually inspect the contents of ethernet protocol data and determine for which system the data is intended for and send the data to that system only
NOTE:
Data Link Layer Devices are hardware as well as software
They can find the MAC address and send the data to the designated receiver.
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