Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-05-15
2009-08-18
Levitan, Dmitry (Department: 2416)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
Reexamination Certificate
active
07577148
ABSTRACT:
An apparatus and method for switching VOIP packets in a data network, wherein the method includes the steps of receiving a first packet in a network switch and determining if the first packet is a VOIP packet. Further, method includes determining a dynamically negotiated VOIP port for a VOIP session from at least one of the first packet and a second packet received in the network switch, if the first packet is determined to be the VOIP packet. Finally, the method includes the steps of classifying all subsequent VOIP packets corresponding to the dynamically negotiated VOIP port in accordance with predetermined parameters. The apparatus includes a network switch having at least one data port interface controller supporting a plurality of data ports for transmitting and receiving data, and a fast filtering processor in communication with the at least one data port interface. At least one filtering table in communication with the fast filtering processor is provided, wherein the fast filtering processor is configured to snoop packets being transmitted through the network switch to trap a VOIP call setup message, and thereafter, determine a dynamically negotiated VOIP port so that all subsequent VOIP packets can be filtered and assigned an appropriate priority.
REFERENCES:
patent: 5278789 (1994-01-01), Inoue et al.
patent: 5390173 (1995-02-01), Spinney et al.
patent: 5414704 (1995-05-01), Spinney
patent: 5423015 (1995-06-01), Chung
patent: 5459717 (1995-10-01), Mullan et al.
patent: 5473607 (1995-12-01), Hausman et al.
patent: 5499295 (1996-03-01), Cooper
patent: 5524254 (1996-06-01), Morgan et al.
patent: 5555398 (1996-09-01), Raman
patent: 5568477 (1996-10-01), Galand et al.
patent: 5579301 (1996-11-01), Ganson et al.
patent: 5644784 (1997-07-01), Peek
patent: 5652579 (1997-07-01), Yamada et al.
patent: 5696899 (1997-12-01), Kalwitz
patent: 5742613 (1998-04-01), MacDonald
patent: 5748631 (1998-05-01), Bergantino et al.
patent: 5781549 (1998-07-01), Dai
patent: 5787084 (1998-07-01), Hoang et al.
patent: 5790539 (1998-08-01), Chao et al.
patent: 5802052 (1998-09-01), Venkataraman
patent: 5802287 (1998-09-01), Rostoker et al.
patent: 5825772 (1998-10-01), Dobbins et al.
patent: 5828653 (1998-10-01), Goss
patent: 5831980 (1998-11-01), Varma et al.
patent: 5842038 (1998-11-01), Williams et al.
patent: 5845081 (1998-12-01), Rangarajan et al.
patent: 5887187 (1999-03-01), Rostoker et al.
patent: 5892922 (1999-04-01), Lorenz
patent: 5898687 (1999-04-01), Harriman et al.
patent: 5909686 (1999-06-01), Muller et al.
patent: 5918074 (1999-06-01), Wright et al.
patent: 5940596 (1999-08-01), Rajan et al.
patent: 5987507 (1999-11-01), Creedon et al.
patent: 6011795 (2000-01-01), Varghese et al.
patent: 6041053 (2000-03-01), Douceur et al.
patent: 6061351 (2000-05-01), Erimli et al.
patent: 6085328 (2000-07-01), Klein et al.
patent: 6119196 (2000-09-01), Muller et al.
patent: 6128298 (2000-10-01), Wootton et al.
patent: 6175902 (2001-01-01), Runaldue et al.
patent: 6185185 (2001-02-01), Bass et al.
patent: 6233234 (2001-05-01), Curry et al.
patent: 6400707 (2002-06-01), Baum et al.
patent: 6411617 (2002-06-01), Kilkki et al.
patent: 6570875 (2003-05-01), Hegde
patent: 0312917 (1989-04-01), None
patent: 465090 (1992-01-01), None
patent: 0752796 (1997-01-01), None
patent: 0849917 (1998-06-01), None
patent: 0853441 (1998-07-01), None
patent: 0854606 (1998-07-01), None
patent: 0859492 (1998-08-01), None
patent: 862349 (1998-09-01), None
patent: 0907300 (1999-04-01), None
patent: 2 725573-AI (1996-04-01), None
patent: 4-1 89023 (1992-07-01), None
patent: WO 98/09473 (1998-03-01), None
patent: WO 99/00938 (1999-01-01), None
patent: WO99/00939 (1999-01-01), None
patent: WO 99/00944 (1999-01-01), None
patent: WO99/00945 (1999-01-01), None
patent: WO 99/00948 (1999-01-01), None
patent: WO 99/00949 (1999-01-01), None
patent: WO 99/00950 (1999-01-01), None
patent: WO9900936 (2001-06-01), None
“A High-Speed CMOS Circuit for 1.2-Gb/s 16×16 ATM Switching,” Alain Chemarin et al. 8107 IEEE Journal of Solid-State Circuits 27(1992) Jul., No. 7, New York, US, pp. 1116-1120.
“Local Area Network Switch Frame Lookup Technique for Increased Speed and Flexibility,” 700 IBM Technical Disclosure Bulletin 38(1995) Jul., No. 7, Armonk, NY, US, pp. 221-222.
“Queue Management for Shared Buffer and Shared Multi-buffer ATM Switches,” Yu-Sheng Lin et al., Department of Electronics Engineering & Institute of Electronics, National Chiao Tung Unversity, Hsinchu, Taiwan, R.O.C., Mar. 24, 1996, pp. 688-695.
“A 622-Mb/s 8×8 ATM Switch Chip Set with Shared Multibuffer Architecture,” Harufusa Kondoh et al., 8107 IEEE Journal of Solid-State Circuits 28(1993) Jul., No. 7, New York, US, pp. 808-814.
“Catalyst 8500 CSR Architecture,” White Paper XP-002151999, Cisco Systems Inc. 1998, pp. 1-19.
“Computer Networks,” A.S. Tanenbaum, Prentice-Hall Int., USA, XP-002147300(1 998), Sec. 5.2-Sec. 5.3, pp. 309-320.
Ambe Shekhar
Kalkunte Mohan
Lor Kar-Wing Edward
Broadcom Corporation
Levitan Dmitry
LandOfFree
Apparatus and method for enabling Voice Over IP support for... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus and method for enabling Voice Over IP support for..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for enabling Voice Over IP support for... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4066686