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.


  • Carrier grades
    Efficient sets
    Ethernet link
    Ethernet oam
    Management procedures
    Optical network units
    Optical time domain reflectometry
    Physical tool
    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