Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-09-04
2011-10-25
Juntima, Nittaya (Department: 2462)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S466000, C370S474000
Reexamination Certificate
active
08045554
ABSTRACT:
Provided are a method of and apparatus for processing a virtual local area network (VLAN) tag frame. The apparatus includes a filtering data base (FDB) for storing a VLAN tag frame which is created by a gigabit passive optical network (GPON) master; an uplink processing unit for removing by referring to the FDB a VLAN tag from the VLAN tag frame which is received from the GPON master, and transmitting a data frame to an Ethernet switch; and a downlink processing unit for inserting by looking up the FDB a VLAN tag into the data frame which is received from the Ethernet switch, and then transmitting the data frame to the GPON master. According to the present invention, port identification (ID) information that is lost in a GPON master may be provided to a switch above the GPON master by using a VLAN tag frame processing technology.
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Korean Office Action 10-2007-0129930, dated Jun. 29, 2009.
Korean Notice of Allowance for Application No. 9-5-2009-036137106, dated Aug. 31, 2009.
Kim Seung Hwan
Ko Je Soo
Electronics and Telecommunications Research Institute
Juntima Nittaya
Lee, Esq. EuiHoon
Nelson Mullins Riley & Scarborugh LLP
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