Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2006-07-25
2006-07-25
Sparks, Donald (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C365S049130
Reexamination Certificate
active
07082492
ABSTRACT:
Methods and apparatus are disclosed for defining and using associative memory entries with force no-hit and priority indications of particular use in implementing policy maps in communication devices. In one use, a set of entries is determined based on a policy map with a force no-hit indication being associated with one or more of the entries. Additionally, programmable priority indications may be associated with one or more of the entries, or with the associative memory devices, associative memory banks, etc. The force no-hit indications are often used in response to identified deny instructions in an access control list or other policy map. A lookup operation is then performed on these associative memory entries, with highest matching result or results identified based on the programmed and/or implicit priority level associated with the entries, or with the associative memory devices, associative memory banks, etc.
REFERENCES:
patent: 3648254 (1972-03-01), Beausoleil
patent: 4296475 (1981-10-01), Nederlof et al.
patent: 4791606 (1988-12-01), Threewitt et al.
patent: 4996666 (1991-02-01), Duluk, Jr.
patent: 5088032 (1992-02-01), Bosack
patent: 5319763 (1994-06-01), Ho et al.
patent: 5339076 (1994-08-01), Jiang
patent: 5383146 (1995-01-01), Threewitt
patent: 5404482 (1995-04-01), Stamm et al.
patent: 5428565 (1995-06-01), Shaw
patent: 5440715 (1995-08-01), Wyland
patent: 5450351 (1995-09-01), Heddes
patent: 5481540 (1996-01-01), Huang
patent: 5515370 (1996-05-01), Rau
patent: 5684954 (1997-11-01), Kaiserswerth et al.
patent: 5740171 (1998-04-01), Mazzola et al.
patent: 5748905 (1998-05-01), Hauser et al.
patent: 5802567 (1998-09-01), Liu et al.
patent: 5841874 (1998-11-01), Kempke et al.
patent: 5842040 (1998-11-01), Hughes et al.
patent: 5852569 (1998-12-01), Srinivasan et al.
patent: 5898689 (1999-04-01), Kumar et al.
patent: 5920886 (1999-07-01), Feldmeier
patent: 5930359 (1999-07-01), Kempke et al.
patent: 5956336 (1999-09-01), Loschke et al.
patent: 5978885 (1999-11-01), Clark, II
patent: 6000008 (1999-12-01), Simcoe
patent: 6041389 (2000-03-01), Rao
patent: 6047369 (2000-04-01), Colwell et al.
patent: 6061368 (2000-05-01), Hitzelberger
patent: 6069573 (2000-05-01), Clark, II et al.
patent: 6081440 (2000-06-01), Washburn et al.
patent: 6091725 (2000-07-01), Cheriton et al.
patent: 6097724 (2000-08-01), Kartalopoulos
patent: 6134135 (2000-10-01), Andersson
patent: 6137707 (2000-10-01), Srinivasan et al.
patent: 6141738 (2000-10-01), Munter et al.
patent: 6148364 (2000-11-01), Srinivasan et al.
patent: 6154384 (2000-11-01), Nataraj et al.
patent: 6175513 (2001-01-01), Khanna
patent: 6181698 (2001-01-01), Hariguchi
patent: 6199140 (2001-03-01), Srinivasan et al.
patent: 6219748 (2001-04-01), Srinivasan et al.
patent: 6236658 (2001-05-01), Essbaum et al.
patent: 6237061 (2001-05-01), Srinivasan et al.
patent: 6240003 (2001-05-01), McElroy
patent: 6240485 (2001-05-01), Srinivasan et al.
patent: 6243667 (2001-06-01), Kerr et al.
patent: 6246601 (2001-06-01), Pereira
patent: 6285378 (2001-09-01), Duluk, Jr.
patent: 6289414 (2001-09-01), Feldmeier et al.
patent: 6295576 (2001-09-01), Ogura et al.
patent: 6307855 (2001-10-01), Hariguchi
patent: 6308219 (2001-10-01), Hughes
patent: 6317350 (2001-11-01), Pereira et al.
patent: 6339539 (2002-01-01), Gibson et al.
patent: 6374326 (2002-04-01), Kansal et al.
patent: 6377577 (2002-04-01), Bechtolsheim et al.
patent: 6389506 (2002-05-01), Ross et al.
patent: 6430190 (2002-08-01), Essbaum et al.
patent: 6434662 (2002-08-01), Greene et al.
patent: 6467019 (2002-10-01), Washburn
patent: 6510509 (2003-01-01), Chopra et al.
patent: 6526474 (2003-02-01), Ross
patent: 6535951 (2003-03-01), Ross
patent: 6546391 (2003-04-01), Tsuruoka
patent: 6597595 (2003-07-01), Ichiriu et al.
patent: 6606681 (2003-08-01), Uzun
patent: 6651096 (2003-11-01), Gai et al.
patent: 6658002 (2003-12-01), Ross et al.
patent: 6707692 (2004-03-01), Hata
patent: 6715029 (2004-03-01), Trainin et al.
patent: 6717946 (2004-04-01), Hariguchi et al.
patent: 6718326 (2004-04-01), Uga et al.
patent: 6738862 (2004-05-01), Ross et al.
patent: 6775737 (2004-08-01), Warkede et al.
patent: 6944709 (2005-09-01), Nataraj et al.
patent: 2001/0038554 (2001-11-01), Takata et al.
patent: 2002/0129198 (2002-09-01), Nataraj et al.
patent: 2003/0005146 (2003-01-01), Miller et al.
patent: 2003/0223259 (2003-12-01), Roth
patent: 2003/0231631 (2003-12-01), Pullela
patent: 2004/0030802 (2004-02-01), Eatherton et al.
patent: 2004/0030803 (2004-02-01), Eatherton et al.
U.S. Appl. No. 10/630,174, filed Jul. 29, 2003, Kanekar et al.
U.S. Appl. No. 10/630,178, filed Jul. 29, 2003, Kanekar et al.
U.S. Appl. No. 10/355,694, filed Jan. 31, 2003, Priyadarshan et al.
U.S. Appl. No. 10/215,719, filed Aug. 10, 2002, Eatherton et al.
U.S. Appl. No. 10/215,700, filed Aug. 10, 2002, Eatherton et al.
U.S. Appl. No. 10/651,179, filed Aug. 28, 2003, Marimuthu et al.
Tong-Bi Pei and Charles Zukowski, “VLSI Implementation of Routing Tables: Tries and CAMS,” Networking in the Nineties, Proceedings of the Annual Joint Conference of the Computer and Communications Societies, New York, Apr. 7, 1991, pp. 515-524, vol. 2, Conf. 10.
Anthony Mcauley and Paul Francis, “Fast Routing Table Lookup Using CAMs,” Networking: Foundation for the Future, Proceedings of the Annual Joint Conference of the Computer and Communications Societies, Los Alamitos, Mar. 28, 1993, pp. 1382-1391, vol. 2, Conf 12.
Jon P. Wade and Charles G. Sodini, “A Ternary Content Addressable Search Engine,” IEEE Journal of Solid-State Circuits, vol. 24, No. 4, Aug. 1989, pp. 1003-1013.
Teuvo Kohonen, Content-Addressable Memories, 1987, pp. 128-129 and 142-144, Springer-Verlang, New York.
Brian Dipert, ed., “Special-purpose SRAMs Smooth the Ride,” EDN, Jun. 24, 1999, pp. 93-104.
“What is a CAM (Content-Addressable Memory)?,” Application Brief AB-N6, Rev. 2a, Music Semiconductors, Milpitas, CA, Sep. 30, 1998, 4 pages.
“Reading Out the Valid LANCAM Memory Entries,” Application Brief AB-N4, Rev. 1a, Music Semiconductors, Milpitas, CA, Sep. 30, 1998, 4 pages.
“Extending the LANCAM Comparand,” Application Brief AB-N3, Rev. 1.0a Draft, Music Semiconductors, Milpitas, CA, Sep. 30, 1998, 4 pages.
“Advantages of CAM in ASIC-Based Network Address Processing,” Application Brief AB-N11, Rev. 1.2a Draft, Music Semiconductors, Milpitas, CA, Sep. 30, 1998, 4 pages.
“Virtual Memory Applications of the MU9C1480A LANCAM,” Application Note AN-N3, Rev. la, Music Semiconductors, Milpitas, CA, Sep. 30, 1998, 12 pages.
“Using the MU9C1965A LANCAM MP for Data Wider than 128 Bits,” Application Note AN-N19, Rev. la, Music Semiconductors, Milpitas, CA, Sep. 30, 1998, 16 pages.
“Fast IPv4 and IPv4 CIDR Address Translation and Filtering Using the MUAC Routing CoProcessor (RCP),” Application Note AN-N25, Rev. 0a, Music Semiconductors, Milpitas, CA, Oct. 1, 1998, 16 pages.
“Using MUSIC Devices and RCPs for IP Flow Recognition,” Application Note AN-N27, Rev. 0, Music Semiconductors, Milpitas, CA, Oct. 21, 1998, 20 pages.
“Wide Ternary Searches Using Music CAMs and RCPs,” Application Note AN-N31, Rev. 0, Music Semiconductors, Milpitas, CA, Apr. 13, 1999, 8 pages.
Devireddy Dileep Kumar
Kanekar Bhushan Mangesh
Pullela Venkateshwar Rao
Scheid Stephen Francis
Cisco Technology Inc.
Farrokh Hashem
Sparks Donald
The Law Office of Kirk D. Williams
LandOfFree
Associative memory entries with force no-hit and priority... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Associative memory entries with force no-hit and priority..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Associative memory entries with force no-hit and priority... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3613833