METHOD AND APPARATUS FOR FILTERING MULTICAST PORT IDENTIFIER IN GIGABIT-CAPABLE PASSIVE OPTICAL NETWORK (GPON) SYSTEM
First Claim
1. An apparatus for filtering a multicast port identifier, the apparatus comprising:
- a processor to receive an Internet Group Management Protocol (IGMP) message from a switching unit, to verify a traffic reception request received from a subscriber terminal based on the IGMP message, and to store a value in a filtering register based on the traffic reception request; and
an Optical Network Unit (ONU) Media Access Control (MAC) manager to filter a packet to be forwarded to the subscriber terminal, using a port identifier for traffic forwarding and reception with the subscriber terminal, and using the value of the filtering register indicating an existence of traffic to be forwarded to the subscriber terminal.
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Accused Products
Abstract
Provided is an apparatus for filtering a multicast port identifier, the apparatus including: a processor to receive an Internet Group Management Protocol (IGMP) message from a switching unit, to verify a traffic reception request received from a subscriber terminal based on the IGMP message, and to store a value in a filtering register based on the traffic reception request; and an Optical Network Unit (ONU) Media Access Control (MAC) manager to filter a packet to be forwarded to the subscriber terminal, using a port identifier for traffic forwarding and reception with the subscriber terminal, and using the value of the filtering register indicating an existence of traffic to be forwarded to the subscriber terminal.
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Citations
20 Claims
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1. An apparatus for filtering a multicast port identifier, the apparatus comprising:
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a processor to receive an Internet Group Management Protocol (IGMP) message from a switching unit, to verify a traffic reception request received from a subscriber terminal based on the IGMP message, and to store a value in a filtering register based on the traffic reception request; and an Optical Network Unit (ONU) Media Access Control (MAC) manager to filter a packet to be forwarded to the subscriber terminal, using a port identifier for traffic forwarding and reception with the subscriber terminal, and using the value of the filtering register indicating an existence of traffic to be forwarded to the subscriber terminal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus for filtering a multicast port identifier, the apparatus comprising:
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a processor to store a value in an ONU MAC register of a GPON Encapsulation Mode (GEM) frame according to a multicast traffic reception request received from a subscriber terminal, and to indicate whether to discard the GEM frame; and an ONU MAC manager to filter the GEM frame based on the value of the ONU MAC register.
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- 12. The apparatus of clam 11, wherein the ONU MAC manager either discards the GEM frame based on the value of the ONU MAC register, or verifies whether the subscriber terminal corresponds to the port identifier to thereby determine whether to discard the GEM frame.
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14. A method of controlling a processor of a multicast port identifier filtering apparatus comprising the processor and an ONU MAC manager, the method comprising:
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receiving an IGMP message from a subscriber terminal; verifying whether a traffic forwarding to the subscriber terminal is needed, based on the IGMP message; and storing a value in an ONU MAC register based on whether the traffic forwarding to the subscriber terminal is needed. - View Dependent Claims (15, 16, 17)
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18. A method of controlling an ONU MAC manager of a multicast port identifier filtering apparatus comprising a processor and the ONU MAC manager, the method comprising:
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checking a header of a packet to extract a port identifier; and determining whether to discard or forward the packet based on the extracted port identifier and a value of a filtering register. - View Dependent Claims (19, 20)
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Specification