Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2004-06-14
2009-11-03
Ton, Dang T (Department: 2419)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S395530, C370S400000, C398S058000, C398S070000, C398S168000
Reexamination Certificate
active
07613187
ABSTRACT:
Disclosed herein is a shared Local Area Network (LAN) emulation method and apparatus. The method includes the following four steps. At the first step, a Logical Link Identifier (LLID) management table is set up to assign unique LLIDs to a plurality of Optical Network Units (ONUs) and manage the assigned LLIDs so as to identify the plurality of ONUs connected to a single Optical Line Terminal (OLT). Thereafter, a MAC address table is set up for the LLIDs to learn MAC addresses of the ONUs. Thereafter, the unique LLIDs are assigned to ONUs when the ONUs request registration from the OLT. Finally, data frames, which are received by a Shared LAN Emulation (SLE) layer of the OLT, are bridged using the LLIDs, VIDs of Virtual LANs to which the ONUs belong and destination MAC addresses of the data frames so as to provide a single matched port between a Logical Link Control (LLC) layer and a MAC layer of the OLT.
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Choi Su Il
Kim Tae Il
Lee Hyeong Ho
Blakely , Sokoloff, Taylor & Zafman LLP
Electronics and Telecommunications Research Institute
Kavleski Ryan C.
Ton Dang T
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