Method for filtering of abnormal ONT with same serial number in a GPON system
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United States of America Patent
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Feb 3, 2015
Grant Date -
Oct 28, 2010
app pub date -
Jul 16, 2009
filing date -
Oct 2, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed is a method of registering only an authorized optical network terminal among a plurality of optical network terminals with the same serial number, in an optical line terminal, using a public key encryption algorithm, in a Gigabit Passive Optical Network (GPON). According to an exemplary aspect, a GPON system encrypts a physical layer OAM message transmitted/received for serial number registration of an optical network terminal, using a key distributed according to a public key encryption algorithm, and authenticates registration of the optical network terminal using the encrypted physical layer OAM message. Accordingly, it is possible to securely authenticate registration of an authorized optical network terminal and block registration of unauthorized optical network terminals.
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