Multiplex communications – Diagnostic testing – Of a switching system
Reexamination Certificate
2005-01-31
2010-06-08
Hsu, Alpus H (Department: 2465)
Multiplex communications
Diagnostic testing
Of a switching system
C370S386000, C340S003100, C340S870030
Reexamination Certificate
active
07733789
ABSTRACT:
A technique for use in gathering network activity-related information from network switches is provided. Using this technique, the information can be gathered without substantially reducing performance of the switches. In one embodiment, a single remote monitoring probe is connected by a multiplexer via respective connections to each of the switches so as to receive the information from the switches. In another embodiment, only one of the switches is connected to the probe, and the other switches transmit their respective portions of the information to the switch connected to probe. The switch connected to the probe provides these portions of the information, as well as, any of its respective activity-related information to the probe. In this latter embodiment, the switches may be connected by dedicated connections and switch ports that are used solely for communicating the activity-related information.
REFERENCES:
patent: 5255291 (1993-10-01), Holden et al.
patent: 5274631 (1993-12-01), Bhardwaj
patent: 5295258 (1994-03-01), Jewett et al.
patent: 5317726 (1994-05-01), Horst
patent: 5357612 (1994-10-01), Alaiwan
patent: 5455932 (1995-10-01), Major et al.
patent: 5485455 (1996-01-01), Dobbins et al.
patent: 5561669 (1996-10-01), Lenney et al.
patent: 5621885 (1997-04-01), Del Vigna, Jr.
patent: 5627965 (1997-05-01), Liddell et al.
patent: 5678006 (1997-10-01), Valizadeh et al.
patent: 5710814 (1998-01-01), Klemba et al.
patent: 5742604 (1998-04-01), Edsall et al.
patent: 5751955 (1998-05-01), Sonnier et al.
patent: 5764636 (1998-06-01), Edsall
patent: 5787255 (1998-07-01), Parlan et al.
patent: 5835914 (1998-11-01), Brim
patent: 5838915 (1998-11-01), Klausmeier et al.
patent: 5892926 (1999-04-01), Witkowski et al.
patent: 6085243 (2000-07-01), Fletcher et al.
patent: 6108306 (2000-08-01), Kalkunte et al.
patent: 6108782 (2000-08-01), Fletcher et al.
patent: 6112241 (2000-08-01), Abdelnour et al.
patent: 6321264 (2001-11-01), Fletcher et al.
patent: 6363077 (2002-03-01), Wong et al.
patent: 6414958 (2002-07-01), Specht
patent: 6441931 (2002-08-01), Moskovich et al.
patent: 6459700 (2002-10-01), Hoang
patent: 6490276 (2002-12-01), Salett et al.
patent: 6501761 (2002-12-01), Pannell et al.
patent: 6632032 (2003-10-01), Dombrowski et al.
IEEE 1149.1 Device Architecture (continued) Using the Instruction Register, http://www.asset-interech.com/homepage/bscantutr/arch2.htm#using IR, pp. 1-4, 1998.
The Principle of Boundary-Scan Architecture, http://www.asset-intertech.com/homepage/bscantutr/principl.htm, pp. 1-4, 1998.
IEEE 1149.1 Device Architecture, http//www.asset-interech.com/homepage/bscantutr/arch.htm, pp. 1-3, 1998.
IEEE 1149.1 Device Architecture (continued), http://www.asset-intertech.com/homepage/bscantutr/arch3.htm#TAP, pp. 1-3, 1998.
Digital Systems Testing and Testable Design, Miron Abramovici, et al., Computer Science Press, pp. 342-409, Copyright 1990.
TCP/IP, second edition, running a successful network, Kevin Washburn, Jim Evans, Addison Wesley Longman, second edition printed 1996. Reprinted 1997. pp. 161-163, 445-464.
Computer Networks, Third Edition, Andrew S. Tanenbaum, Prentice Hall, 1996, pp. 630-643.
Cisco—Catalyst 5500/5000 Series Network Analysis Module, web http://www.cisco.com/warp/public/729/c5000
am—ds.htm, pp. 1-5.
RMON Overview, web, http://support.baynetworks.com/lib—1/router/soft1101/114070B/N—24.HTM, pp. 1-5.
Cisco—Catalyst 3100 Stackable Switch- web- http://www.cisco.com/warp/public/729/c3100—pa.htm, pp. 1-4.
Cisco-RMON on the Workgroup Catalyst 1200 Series, RM on the Workgroup Catalyst Series Revised Apr. 3, 1998, Web, http://www.cisco.com/warp/public/701/25.html pp. 1-5.
Installing the Catalyst 3900, Documentation, web, http://www.cisco.com/univercd/cc/t—ct/lan/cat3900/c939Oug/install.htm, pp. 1-11.Catalyst.
Catalyst 3000 Stack Theory of Operation, Documentation, web, http://www.cisco.com/univercd/cc/t—oduct/lan/cat3ks/3000/adopstck.htm, pp. 1-5.
Interconnecting Catalyst 3900 Token Ring Switches, web, http://www.cisco.com/univercd/cc/t—t/lan/cat3900/c3930ug/planning.htm, pp. 1-6.
Cisco-RMON—Catalyst Workgroup Switch, Customer Profile: Synopsys, Inc.,web, http://www.cisco.com/warp/public/614/4.html, pp. 1-6.
Cisco—Remote Monitoring for Switched Internetworks (RMON and RMON2), Additional general information about Cisco switching solutions, web, http://www.cisco.com/warp/public/729/Manage/rmon2—wp.htm, pp. 1-6.
King Robert Leroy
Nederveen Paul Johan
Cesari and McKenna LLP
Cisco Technology Inc.
Hsu Alpus H
LandOfFree
Remote monitoring of switch network does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Remote monitoring of switch network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Remote monitoring of switch network will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4198422