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Detail
Registered DETECTING ROGUE ONU, OLT AND PON SYSTEM
- Inventors
- Kim Geun Yong, Kim Sung Chang, Lee Dongsoo, Yoon Sim-Kwon, Kim Jong Deog, Yoo Hark, Lee Youngsuk, Koh Jaisang, Lee Mun Seob
- Application No.
- 13219123 (2011.08.26)
- Publication No.
- 20120163808 (2012.06.28)
- Registration No.
- 8768163 (2014.07.01)
- Country
- UNITED STATES
- Project Code
- 10ZV1100, Green IT convergence Technologies Development, Lee Hyun Woo
- Abstract
- A method and apparatus of detecting a rogue optical network unit (ONU) is provided. An optical line terminal (OLT) detects an abnormal upstream transmission to determine a plurality of rogue ONU candidates, and transmits a sleep allow message instructing a transition to a sleep mode to each of the plurality of rogue ONU candidates. The OLT detects the rogue ONU among the plurality of rogue ONU candidates based on upstream transmissions from the plurality of rogue ONU candidates in the sleep mode. Since the detection of the rogue ONU is performed in the sleep mode, the remaining ONUs can transition from the sleep mode to the normal mode after the detection of the rogue ONU is completed, thereby making it possible to rapidly resume upstream communication.
- KSP Keywords
- Normal Mode, Optical Line Terminal, Optical Network Units(ONU), Optical networks, PON system, Sleep mode, Upstream transmission