Exploration Chapter 9 Slides

Exploration Chapter 9 Slides - Ethernet CCNA Exploration...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
12 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 1 Ethernet CCNA Exploration Semester 1 Chapter 9
Background image of page 1

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

View Full DocumentRight Arrow Icon
12 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 2 Ethernet OSI model layers 1 (physical) and 2 (data link) TCP/IP model Network Access layer Application Presentation Session Transport Network Data link Physical Application Transport Internet Network Access Ethernet
Background image of page 2
12 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 3 Ethernet The most common LAN technology Different media (copper cable, optical fibre) Different bandwidths (10, 100Mbps, Gbps, +) Same addressing scheme Same basic frame format
Background image of page 3

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

View Full DocumentRight Arrow Icon
12 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 4 Ethernet history First LAN was Ethernet, designed at Xerox 1980 Ethernet standard published by DIX (Digital, Intel, Xerox) 1985 IEEE modified Ethernet standard and published as 802.3 Ethernet 802.3 802.2 MAC LLC
Background image of page 4
12 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 5 Sublayers Logical Link control sublayer links to upper layers, is independent of equipment. Media Access Control sublayer provides addressing, frame format, error detection, CSMA/ CD. Physical layer handles bits, puts signals on the medium, detects signals. MAC LLC
Background image of page 5

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

View Full DocumentRight Arrow Icon
12 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 6 Advantages of Ethernet Simplicity and ease of maintenance Ability to incorporate new technologies (e.g. fibre optic, higher bandwidths) Reliability Low cost of installation and upgrade
Background image of page 6
12 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 7 Shared medium Physical bus topology 10Base5 (thick coaxial cable up to 500m) 10Base2 (thin coaxial cable up to 185m) Physical star topology 10BaseT (UTP cable up to 100m) Collisions happen – managed with CSMA/CD
Background image of page 7

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

View Full DocumentRight Arrow Icon
12 May 2009 S Ward Abingdon and Witney College CCNA Exploration Semester 1 8 Hubs and switches “Legacy Ethernet”, 10Base5, 10Base2 or 10BaseT with hubs is designed to work with collisions, when devices transmit at the same time. Collisions are managed by CSMA/CD. Performance is poor if there is a lot of traffic
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/29/2008 for the course ICTN 2154 taught by Professor Khoury during the Spring '08 term at East Carolina University .

Page1 / 29

Exploration Chapter 9 Slides - Ethernet CCNA Exploration...

This preview shows document pages 1 - 9. Sign up to view the full document.

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