NETWORKING COMPONENTS

Matilda RoachCECS 5460

Assignment 3

PRESENTATION PREVIEW Hubs Switches Routers Bridges Gateways Firewalls Wireless APs Network Diagram

HUB (AKA REPEATERS)… connect multiple devices through wire

(usually cat 5, 5e, or 6) broadcast incoming network traffic to all

connected devices operate on OSI layer 1 are used as a low-cost means to connect

local devices $8-$50

HUB FUNCTION DIAGRAM

SWITCHES... connect multiple devices through wire

(usually cat 5, 5e, or 6) broadcast more intelligently than hubs based

on managed network segmenting operate mostly on OSI layer 2 are used as a more efficient means to

connect local devices $20-$250

SWITCH FUNCTION DIAGRAM

ROUTERS... relay information based on IP address both

through wire and wirelessly assign IP addresses to the devices connected

to it operate on OSI layer 3 provide a means for multiple devices to

connect to an outside network through a single point

$40-$150

ROUTER FUNCTION DIAGRAM

BRIDGES… connect wired network segments intelligently do not assign IP addresses but do learn them

to operate more efficiently operate usually on OSI layer 2 $25-$80

BRIDGE FUNCTION DIAGRAM

GATEWAYS… relay information between two networks

operating on different protocols operate on varying OSI layers provide a network entry point and exit point in the home, routers usually act as a gateway

as well $40-$300

GATEWAY FUNCTION DIAGRAM

FIREWALLS… can be hardware or software based block unwanted traffic to and from the

network usually operates on the first 3 OSI layers wide range of cost which depends on the

implementation (software can be free and is usually cheap; hardware can be very expensive)

software firewalls are primarily used in the home; enterprise systems will use hardware

FIREWALL FUNCTION DIAGRAM

WIRELESS APS… allow wireless devices to an otherwise wired

network do not assign IP addresses but instead act as

a means of passing information in enterprise situations, Wireless APs are

used for wireless coverage in systems with centralized authentication and IP distribution

$20-$100

WIRELESS AP FUNCTION DIAGRAM

NETWORK DIAGRAM