5.5 Module 5 -- Cabling LANs & WANs

5.5 Module 5 -- Cabling LANs & WANs

• Attenuation is related to frequency and cable length.
• Ethernet
  • 10Base-x obsolete
  • 100Base-T simples/full duplex
  • GigaBit Ethernet
  • Fiber Optics, single-mode, multi-mode.
  • Connectors AUI/BNC/RJ-45/Fiber (Wikipedia: BNC_connector)
• Cables
  • Ethernet straight through
  • Ethernet cross over
  • Cisco console (roll-over) EIA-RS323C
  • Cisco serial
• repeaters, hubs - obsolete (layer 1, bits)
• bridges, switches (layer 2 - MAC addresses, frames)
• routers (layer 3 -IP addresses, packets)
• wireless 802.11x
• CISCO peer-to-peer networks
• The Internet IS a peer-to-peer network
• What is a client? What is a client server? (Hardware/software)
• client-server networks
• WAN connections
  • ISDN (Wikipedia: ISDN)
  • T-carrier (Wikipedia: T-carrier) T1 1.544Mbit/sec, T3 44.736Mbit/sec, T4 274.1766Mbit/sec, T5 400.352 Mbit/s. J - Japan & E - Europe.
  • DSL
  • Cable modems
  • Optical Carrier (Wikipedia: Optical_Carrier)
  • OC-1 up to 51.84 Mbit/s (payload: 50.112 Mbit/s; overhead: 1.728 Mbit/s).
  • OC-3 up to 155.52 Mbit/s (payload: 148.608 Mbit/s; overhead: 6.912 Mbit/s).
  • OC-48 up to 2488.32 Mbit/s (payload: 2405.376 Mbit/s; overhead: 82.944 Mbit/s).
  • OC-96 up to 4976.64 Mbit/s (payload: 4810.752 Mbit/s; overhead: 165.888 Mbit/s).
  • OC-192 up to 9953.28 Mbit/s (payload: 9621.504 Mbit/s; overhead: 331.776 Mbit/s).
  • OC-768 up to 39,813.12 Mbit/s (payload: 38,486.016 Mbit/s; overhead: 1327.104 Mbit/s).
• Equipment and cable placement.

5.5 Module 5 -- Cabling LANs & WANs