PON with distributed virtual port loopback

Details PON with distributed virtual port loopback PON with distributed virtual port loopback

2007-03-22

2010-11-02

Tran, Phuc (Department: 2471)

Multiplex communications

Diagnostic testing

C370S247000

Reexamination Certificate

active

07826378

ABSTRACT:
A passive optical network (PON) access network connected to an external data network can be tested using a remote test host operating on the external data network by looping test data from the test host through the PON to an Optical Network Terminator (ONT), through a data path between an ONT test port and an ONT user port, and back through the PON to the test host. Data tunneling is used to route the data through the external data network between the test host and the PON Optical Line Terminal (OLT). The invention can be used to emulate downstream as well as upstream PON traffic for remote diagnostic testing or other purposes.

REFERENCES:
patent: 5361293 (1994-11-01), Czerwiec
patent: 5680391 (1997-10-01), Barron et al.
patent: 2005/0198272 (2005-09-01), Bernard et al.
patent: 2006/0198634 (2006-09-01), Ofalt et al.
patent: 2007/0242954 (2007-10-01), Sackman
patent: 2008/0212744 (2008-09-01), Wurst et al.
patent: 2008/0232804 (2008-09-01), Absillis
patent: 2009/0252494 (2009-10-01), Capurso et al.

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