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Network Switching
Aung Thu Rha Hein (g5536871)
2nd March 2014
What is network switching?
➔ A network device to connect segments within a network
➔ receive messages and send only to the...
Network Devices & OSI Layer
Association
OSI Layer

Layer Name

Devices

4-7

Transport, Session,
Presentation,Application
...
Layer 1 Switch
Hub
➔ port mirroring
◆

send network packages from one switch port to another port

➔ can’t filter messages...
Layer 2 switch
➔ perform bridging (Bridge with multiple ports )
➔ Store & Forward Switch
◆
◆

perform error-checking befor...
Layer 2 switch
➔ Fragment Free Cut Through Switch
◆
◆

forward all frames initially
if particular ports get many error fra...
Layer 3 switch
➔ layer 2 switch- filter & forward frames
➔ layer 3 switch- routing capability
◆
◆

each ports is separate ...
Layer 4 Switch
Session,Content switch
➔ responsible for the analysis and control of network
traffic at transport layer
➔ v...
Layer 7 Switch
Application,Content switch
Conclusion
Complexity
and
Functionality
(Ascending
Order)

Hub
Bridge
L2 Switch
Router & L3 Switch
L4 Switch
L7 Switch

Th...
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Network switching

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This is a comparison and explanation of network switching devices. The time constraints is only 15 minutes and only covers the general idea of all devices.

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Transcript of "Network switching"

  1. 1. Network Switching Aung Thu Rha Hein (g5536871) 2nd March 2014
  2. 2. What is network switching? ➔ A network device to connect segments within a network ➔ receive messages and send only to the targeted devices ➔ Type of Switch: ◆ Layer 1 Switch or Hub ◆ Layer 2 Switch ◆ Layer 3 Switch ◆ Layer 4-7 Switch (MultiLayer Switch)
  3. 3. Network Devices & OSI Layer Association OSI Layer Layer Name Devices 4-7 Transport, Session, Presentation,Application Multi-Layer Swtich 3 Network Routers, Layer 3 Switch 2 Data Link Switches, Bridges, NIC’s 1 Physical Hub or Layer 1 switch
  4. 4. Layer 1 Switch Hub ➔ port mirroring ◆ send network packages from one switch port to another port ➔ can’t filter messages. propagate to all connected devices ➔ not intelligence to find out best path for data packets.
  5. 5. Layer 2 switch ➔ perform bridging (Bridge with multiple ports ) ➔ Store & Forward Switch ◆ ◆ perform error-checking before sending network frames highly reliable & slow ➔ Cut Through Switch ◆ ◆ ◆ No error checking look up destination and forward it performance penalty
  6. 6. Layer 2 switch ➔ Fragment Free Cut Through Switch ◆ ◆ forward all frames initially if particular ports get many error frames, switch to store & forward mode ➔ Unmanaged/Intelligence Switch ◆ ◆ tracks & reports performance statistics have DB ASIC
  7. 7. Layer 3 switch ➔ layer 2 switch- filter & forward frames ➔ layer 3 switch- routing capability ◆ ◆ each ports is separate LAN port difference with router: physical implementation
  8. 8. Layer 4 Switch Session,Content switch ➔ responsible for the analysis and control of network traffic at transport layer ➔ vendor dependent ➔ can include firewall,IP security Gateway,Policy based routing & ACLs ➔ E.g. Cisco 3560 L4 Switch ◆ L2 switching, L3 routing & L4 content regarding forwarding, dropping, prioritizing, packets carrying
  9. 9. Layer 7 Switch Application,Content switch
  10. 10. Conclusion Complexity and Functionality (Ascending Order) Hub Bridge L2 Switch Router & L3 Switch L4 Switch L7 Switch Thanks & Questions
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