• Describe what Ethernet is and how it works.
• Install Ethernet networks.
• Troubleshoot Ethernet networks.
• Analyse Ethernet packets.
• Design Ethernet networks.
• Recognise the uses of Hubs, Bridges, switches and routers.

Duration: 3 days

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Ethernet course contents

What is Ethernet?
LANS, What is Ethernet?, history, standards, the OSI reference model, how Ethernet works, CSMA/CD.
Ethernet Cabling
UTP, cat 3,4,5, Cat 5e, Cat 6, Cat 7, fibre optic cable, MMF, SMF. Exercise: Making a cable.

802.3 physical specifications
Distance limitations, hubs and repeaters, 5-4-3-2-1 rule, 10BaseT, 10BaseF, 100BaseTX, 100BaseFX, 1000BaseSX, 1000BaseT, 10gbe. Exercise: Working with hubs.

Ethernet layer 2
Overview, NICS, device drivers, MAC addresses, broadcasts, multicasts, frame formats, Ether II, 802.3, 802.2, SNAP, compatibility, Ethernet type numbers, Ethernet multicast addresses, Ethernet vendor codes. Exercise: Installing Ethernet components, analysing MAC headers.

IP and Ethernet
ARP. Exercise: Analysing ARP packets.

Ethernet extensions
Full/half duplex, auto negotiation, flow control methods, 802.3ad, 802.3af, 802.3ah. Exercise: Configuration of full/half duplex.

Ethernet speed enhancements
Encoding, Carrier extension, packet bursting, jumbo frames.

Prioritisation
802.1P, 802.1Q, TOS, WRR, QOS, VLANs. Exercise: 802.1p testing.

Interconnecting LANS
Broadcast domains, Collision domains, What are bridges, transparent bridging, What are switches? STP, VLANS, What are routers? Layer 3 switches, Connecting Ethernet to the WAN. Exercise: STP, Analysing Ethernet frames in a routed architecture.

Troubleshooting and maintaining Ethernet
Utilisation, performance, TDR and other testers, bottlenecks, statistics, RMON. Exercise: Monitoring performance, troubleshooting tools.