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Network Devices (Routers (Connects different network types: (LAN, WAN,…
Network Devices
Routers
Moves traffic between IP subnets
Decisions based on IP address
Connects different network types:
LAN
WAN
Copper
Fiber
Wireless routers include a WAP
Wireless Access Point
Forwards based on MAC address
Switch(es)
Forwards traffic based on datalink address
Bridging done in hardware
Supports PoE (Power over Ethernet)
Multilayer switches provide routing (layer 3 switch)
Firewall
Filters traffic by port #
Can encrypt data into/out of network
Proxy traffic
Can also be a router
Hub
Multi-port repeater
Half-duplex
1 device can communicate at any given time
Less efficient as traffic increases
10/100Mbit/s
Modem
Converts analog to digital sounds
Required on both sides
Uses standard phone lines
Copper Line driver/Extender
Extend range of copper wiring
Powered device regenerates signal
Used in data centers
Patch panels
Combo of punch-down blocks and RJ-45 connectors
Used most commonly in datacenters
Power-line communication/Ethernet over Power
Run standard ethernet over power lines already in buildings
1 wire for network and electricity