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.
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