Technology - Infrastructure - Last Mile 3 - Fibre - Metro Ethernet, GPON

Synopsis

We discuss the G9.83 APON, G.984 GPON and Metro Ethernet fibre network standards and Chinese proposals for extending 803.3ah Ethernet in the First Mile. We also discuss E-Line and E-LAN services, plastic and air-blown fibre, and carrier requirements for making large-scale fibre last-mile networks robust and able to be properly managed.

Table of Contents

• 1. Synopsis
• 2. ‘Carrier grade’ reliability and management
  • 2.1 Connectivity layer OAM
  • 2.2 Services layer OAM
  • 2.3 Ethernet-centric vs. other transport mechanisms
    • 2.3.1 Pseudowires
    • 2.3.2 Longer Ethernet frames
• 3. Alternative fibre strategies
  • 3.1 Single mode fibre problems
  • 3.2 Plastic optical fibre - POF
  • 3.3 Air-blown Fibre
• 4. Metro Ethernet services
  • 4.1 Symmetrical data rates
  • 4.2 E-Line Ethernet Line Service
  • 4.3 E-LAN Ethernet LAN Service
• 5. ITU G.983 APON/BPON
  • 5.1 Protection switching difficult in a PON
  • 5.2 RF video wavelength
• 6. ITU G.984 GPON
• 7. ITU G.985 Point-to-point
• 8. 802.3ah Point-to-Point
• 9. 802.3ah EPON
  • 9.1 Chinese proposals for 802.2ah
    • 9.1.1 Circuit emulation
  • 9.2 2 10Gb/s 802.3ah EPONs
    • 9.2.1 Power and scattering problems
    • 9.2.2 Dispersion limits
• 10. Related reports