L9ExtendingLANs6 - Part 2 Packet Transmission Part 2 Packet...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1 Part 2 – Packet Transmission Extending LANs Gail Hopkins Part 2 – Packet Transmission Introduction ± Fibre modems ± Repeaters ± Bridges ± Switches Part 2 – Packet Transmission Distance Limitation in LANs ± MAC protocols such as CSMA/CD require time proportional to the length of the cable ± Electrical signal weakens with distance ± Network designers choose a combination of capacity, delay and distance that can be achieved within a given cost Part 2 – Packet Transmission Fibre Optic Extensions ± Fibre modems extend connection between computer and transceiver/hub Part 2 – Packet Transmission Repeaters ± Join Ethernet cables (segments) together ± Amplified signal - no knowledge of frames ± Deals with signal strength, but not delay Part 2 – Packet Transmission Multiple Repeaters ± Ethernet standard says no more than four repeaters between two computers
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Part 2 – Packet Transmission Multiple Repeaters (2) ± Fiber modems can be used between repeaters for long distance extensions
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 4

L9ExtendingLANs6 - Part 2 Packet Transmission Part 2 Packet...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online