Troubleshooting PON networks effectively with carrier-grade ethernet and WDM-PON Articles uri icon

publication date

  • February 2014

start page

  • S7

end page

  • S13


  • 2


  • 52

International Standard Serial Number (ISSN)

  • 0163-6804

Electronic International Standard Serial Number (EISSN)

  • 1558-1896


  • WDM-PONs have recently emerged to provide dedicated and separated point-to-point wavelengths to individual optical network units. In addition, the recently standardized Ethernet OAM capabilities under the IEEE 802.1ag standard and ITU-T Recommendation Y.1731, together with state-of-the-art optical timedomain reflectometry provide new link-layer and physical tools for the effective troubleshooting of WDM-PONs. This article proposes an integrated troubleshooting box (ITB) for the effective combination of both physical and link-layer information into an effective and efficient set of management procedures for WDM-PONs. We show its applicability in a number of realistic troubleshooting scenarios, including failure situations involving either the feeder fiber, one of its branches, or even Ethernet links after the ONU.


  • Optics
  • Telecommunications


  • carrier grades; efficient sets; ethernet link; ethernet oam; management procedures; optical network units; optical time domain reflectometry; physical tool; ethernet; passive optical networks; optical fiber devices; passive optical networks; wavelength division multiplexing; optical fiber testing; optical fibers; wavelength division multiplexing; optical fibre lan; optical links