CISCO NETWORKING ACADEMY Chabot College ELEC 99.05 Network Devices.
14
CISCO NETWORKING ACADEMY CISCO NETWORKING ACADEMY Chabot College Chabot College ELEC 99.05 ELEC 99.05 Network Devices
-
Upload
denis-marshall -
Category
Documents
-
view
214 -
download
1
Transcript of CISCO NETWORKING ACADEMY Chabot College ELEC 99.05 Network Devices.
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
Chabot CollegeChabot College
ELEC 99.05ELEC 99.05Network Devices
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
Network DevicesNetwork Devices
• Every type of network device was developed to solve a problem.
• Network devices operate at different layers of the OSI model.
• Are represented by Cisco icons.
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
RepeaterRepeater
• Problem: On a long wire, signal gets weak.• Function: to strengthen signal & extend it to a
new media segment. • Layer 1 device - works with bits.
• Animation
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
HubHub• Problem: workgroups need shared access to
printers, files, etc.• Function: to provide concentrated connections for
workgroups.• Hub is a multi-port repeater.• Layer 1 device - works with bits.
• Animation
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
BridgeBridge
• Problem: too much traffic jams network.• Function: to segment traffic and contain
traffic jams.• Layer 2 device - works with MAC
addresses.
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
SwitchSwitch• Problem: shared access often results in
traffic jams.• Function: to concentrate connections &
segment traffic.• Combines advantages of hub & bridge.• Switch is a multi-port bridge.• Layer 2 device - works with MAC
addresses.
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
RouterRouter• Problem: How to find network path from
Hayward to New York.• Function: to direct traffic over multiple paths.
– Also:• to contain traffic jams• to connect different network topologies
• Layer 3 device - works with IP addresses.
• Animation
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
Net Devices Solve ProblemsNet Devices Solve ProblemsDevice Function
Repeater
To strengthen signal & extend it to a newmedia segment.
Hub
To provide concentrated connections forworkgroups.
Bridge
To segment traffic & contain traffic jams.
Switch
To concentrate connections & segment traffic.
Router
To direct traffic over multiple paths.
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
Devices Function at LayersDevices Function at Layers
D evice W o rks W ith
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
QuizQuiz
• What’s this?• Repeater
• Which OSI Layer?• Layer 1
• Works with?• Bits - 10010101
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
QuizQuiz
• What’s this?• Hub
• Which OSI Layer?• Layer 1
• Works with?• Bits - 10010101
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
QuizQuiz
• What’s this?• Bridge
• Which OSI Layer?• Layer 2
• Works with?• MAC Addresses - 00-C0-F0-56-BD-71
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
QuizQuiz
• What’s this?• Switch
• Which OSI Layer?• Layer 2
• Works with?• MAC Addresses - 00-C0-F0-56-BD-71
CISCO NETWORKING ACADEMYCISCO NETWORKING ACADEMY
QuizQuiz
• What’s this?• Router
• Which OSI Layer?• Layer 3
• Works with?• IP Addresses - 172.28.118.240
