Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-02-01
2005-02-01
Pham, Chi (Department: 2663)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S401000
Reexamination Certificate
active
06850518
ABSTRACT:
A data link switching (DLSw) routing information field (RIF) passthru technique provides end-to-end source route information to source and destination endstations coupled to respective local and remote source-route bridge (SRB) subnetworks of a DLSw network. The local and remote SRB subnetworks include respective local and remote DLSw peer switches that communicate over an intermediate wide area nework to form the DLSw network. The source route information describes a complete path between the source endstation and the local DLSw switch on the local SRB subnetwork, and the remote DLSw switch and destination endstation on the remote SRB subnetwork. The DLSw RIF passthru technique enables token ring frame exchanges between the source and destination endstations with end-to-end source route information that is transparently forwarded between the DLSw peer switches.
REFERENCES:
patent: 4823338 (1989-04-01), Chan et al.
patent: 4864559 (1989-09-01), Perlman
patent: 5018133 (1991-05-01), Tsukakoshi et al.
patent: 5027350 (1991-06-01), Marshall
patent: 5088032 (1992-02-01), Bosack
patent: 5088090 (1992-02-01), Yacoby
patent: 5095480 (1992-03-01), Fenner
patent: 5111453 (1992-05-01), Morrow
patent: 5144622 (1992-09-01), Takiyasu et al.
patent: 5280480 (1994-01-01), Pitt et al.
patent: 5309437 (1994-05-01), Perlman et al.
patent: 5323394 (1994-06-01), Perlman
patent: 5394402 (1995-02-01), Ross
patent: 5414704 (1995-05-01), Spinney
patent: 5448565 (1995-09-01), Chang et al.
patent: 5491687 (1996-02-01), Christensen et al.
patent: 5500860 (1996-03-01), Perlman et al.
patent: 5511168 (1996-04-01), Perlman et al.
patent: 5517620 (1996-05-01), Hashimoto et al.
patent: 5617421 (1997-04-01), Chin et al.
patent: 5623532 (1997-04-01), Houde et al.
patent: 5633858 (1997-05-01), Chang et al.
patent: 5684800 (1997-11-01), Dobbins et al.
patent: 5737526 (1998-04-01), Periasamy et al.
patent: 5740171 (1998-04-01), Mazzola et al.
patent: 5742604 (1998-04-01), Edsall et al.
patent: 5752003 (1998-05-01), Hart
patent: 5764636 (1998-06-01), Edsall
patent: 5796732 (1998-08-01), Mazzola et al.
patent: 5848242 (1998-12-01), Behaghel et al.
patent: 5852607 (1998-12-01), Chin
patent: 5872783 (1999-02-01), Chin
patent: 5909550 (1999-06-01), Shankar et al.
patent: 5999541 (1999-12-01), Hinchey et al.
patent: 6065062 (2000-05-01), Periasamy et al.
patent: 6137797 (2000-10-01), Bass et al.
patent: 6215772 (2001-04-01), Verma
patent: 6438133 (2002-08-01), Ervin et al.
Draft Supplement to IEEE Std. 802.5, Annex K—DTR Concentrator Functional Description, Copyright 1995, pp. K-1-K-22.
Perlman, Radia,Interconnections: Bridges and Routers, Copyright 1992, pp. 99-125.
Tanenbaum, Andrew,Computer Networks, Third Edition, Copyright 1996, pp. 275-318.
World Wide Web page http://www.cisco.com/warp/public/538/7.html,Cisco VLAN Roadmap, Copyright 1996, pp. 1-9.
IAC Newsletter Database,Cisco Announces Token-Ring Switching Products, Apr. 15, 1995, pp. 4-5.
Catalyst 5000 Series Software Configuration Guide,Chapter 13, Configuring VTP and Virtual LANs, pp. 13-1-13-24.
World Wide Web page http://www.cisco.com/univercd/cc/td/doc/product/lan/trsrb/overview.htm,Overview of Token Ring Switching, Copyright 1989-1998, pp. 1-8.
Aamer Latif, et al.,The IBM 8209 LAN Bridge, May 1992, pp. 28-37.
P802.1Q/D6,Draft Standard for Virtual Bridged Local Area Networks, May 1997, pp. 1-10, 70-72.
David Bryant et al.,DLSw Multicast Protocol Enhancement, Oct. 1995, revised Jul. 1996, pp. 1-15.
Network Working Group, L. Wells et al.,Data Link Switching: Switch-to-Switch Protocol, Apr. 1995, pp. 1-91.
World Wide Web page http://www.cisco.com/warp/public/614/2.html,DLSw and DLSw+, Copyright 1996, pp. 1-8.
World Wide Web page http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/dlsw.htm,Data-Link Switching(DLSw), Copyright 1989-1999, pp. 1-8.
World Wide Web page http://www.cisco.com/univercd/cc/t . . . are/ios113ed/113t/113t_4/trisl.htm,Token Ring InterSwitch Link, Oct. 8, 1998, pp. 1-12.
World Wide Web page http://www.cisco.com/univercd/cc/t . . . duct/lan/cat3900/c3930ug/token.htm,Understanding Token Ring Switching, Copyright 1989-1998, pp. 1-22.
Cohen, Reuven,A New Protocol For Route Discovery In Multiple-Ring Networks: Part I-The Basic Protocol, 1994, pp. 488-498.
Cesari and McKenna
Cisco Technology Inc.
George Keith M.
Johnston A. Sidney
Pham Chi
LandOfFree
DLSw RIF passthru technique for providing end-to-end source... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with DLSw RIF passthru technique for providing end-to-end source..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and DLSw RIF passthru technique for providing end-to-end source... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3450351