Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2008-10-27
2011-11-22
Phillips, Hassan (Department: 2467)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S390000
Reexamination Certificate
active
08064442
ABSTRACT:
One embodiment of the present invention provides a system that performs layer 3 (L3) aware switching in an Ethernet passive optical network (EPON) which includes a central node and at least one remote node. During operation, the system maintains a set of mapping information which indicates a correspondence relationship between a logical link identifier of a remote node, a medium access control (MAC) address for a subscriber coupled to the remote node, and an IP address for the subscriber. Upon receiving a packet which contains an IP address, the system selectively attaches a proper logical link identifier to the packet based on the mapping information and the IP address contained in the packet, thereby allowing only one proper remote node to receive the packet.
REFERENCES:
patent: 6967949 (2005-11-01), Davis
patent: 7286538 (2007-10-01), Song et al.
patent: 7362704 (2008-04-01), Sisto et al.
patent: 7388888 (2008-06-01), Lee et al.
patent: 7436765 (2008-10-01), Sisto et al.
patent: 7505459 (2009-03-01), Boyd
patent: 7630639 (2009-12-01), Kramer et al.
patent: 2003/0190168 (2003-10-01), Song
patent: 2003/0235205 (2003-12-01), Song
patent: 2004/0057431 (2004-03-01), Song et al.
patent: 2004/0114592 (2004-06-01), Kang
patent: 2004/0264400 (2004-12-01), Lee
patent: 2005/0243837 (2005-11-01), Boyd et al.
patent: 2003-169067 (2003-06-01), None
patent: 2008-507159 (2008-03-01), None
Publication: “IETF RFC 3046 DHCP Relay Agent Information Option”, by M. Patrick, Network Working Group, Jan. 2001, pp. 1-14.
Onishi, K., et al., “A Study of the Gigabit PON System for Ethernet Access Networks,”IEICE Technical Report103(415): 2-9, Institute of Electronics, Information and Communication Engineer's (IEICE), Japan (Nov. 2003).
Pesavento, G., “Ethernet Passive Optical Network (EPON) architecture for broadband access,” David Su & David W. Griffith, (eds),Optical Networks Magazine,pp. 1-7, Kluwer Academic Publishers and SPIE (The International Society for Optical Engineering), (Jan./Feb. 2003).
English language Abstract for JP 2003-169067 A, Japanese Patent Office, Patent & Utility Model Gazette DB, Patent Abstracts of Japan, (2003).
Boyd Edward W.
Smith Russell
Broadcom Corporation
Mais Mark A
Phillips Hassan
Sterne Kessler Goldstein & Fox P.L.L.C.
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