Multiplex communications – Fault recovery – Bypass an inoperative station
Reexamination Certificate
2002-12-10
2009-02-03
Lee, Andrew (Department: 2416)
Multiplex communications
Fault recovery
Bypass an inoperative station
C370S390000
Reexamination Certificate
active
07486612
ABSTRACT:
A multicasting network includes a number of routers that are connected together to form a ring. The routers include a source router that identifies incoming multicasting data packets, and forwards the multicasting data packets in both directions on the ring. The routers also include forwarding routers that identify incoming multicasting data packets, and forwards the multicasting data packets in only one direction on the ring. Further, each ring has two terminating routers that receive forwarded data packets on two external nodes, and accept forwarded data packets from only a first external node and not from a second external node. When a fault condition is detected that prevents data packets from being forwarded in a first direction on the ring, the routers down stream of the fault condition reconfigure themselves to receive forwarded data packets from the second direction.
REFERENCES:
patent: 5463763 (1995-10-01), Kubo
patent: 5867481 (1999-02-01), Miyagi
patent: 6246665 (2001-06-01), Watanabe et al.
patent: 6295615 (2001-09-01), Cohen
patent: 6324161 (2001-11-01), Kirch
patent: 6327260 (2001-12-01), McGrew
patent: 6331986 (2001-12-01), Mitra et al.
patent: 6430700 (2002-08-01), Daruwalla et al.
patent: 6442134 (2002-08-01), Mitchell
patent: 6452942 (2002-09-01), Lemieux
patent: 6512774 (2003-01-01), Vepa et al.
patent: 6532088 (2003-03-01), Dantu et al.
patent: 6553034 (2003-04-01), Chan et al.
patent: 6563830 (2003-05-01), Gershon et al.
patent: 6594232 (2003-07-01), Dupont
patent: 6616350 (2003-09-01), de Boer et al.
patent: 6639896 (2003-10-01), Goode et al.
patent: 6718552 (2004-04-01), Goode
patent: 6741595 (2004-05-01), Maher et al.
patent: 6754221 (2004-06-01), Whitcher et al.
patent: 6763190 (2004-07-01), Agrawal et al.
patent: 6778525 (2004-08-01), Baum et al.
patent: 6798751 (2004-09-01), Voit et al.
patent: 6850483 (2005-02-01), Semaan
patent: 6873618 (2005-03-01), Weaver
patent: 6952396 (2005-10-01), Cottreau et al.
patent: 6973267 (2005-12-01), Arecco et al.
patent: 6975587 (2005-12-01), Adamski et al.
patent: 6975637 (2005-12-01), Lenell
patent: 7031201 (2006-04-01), Kim et al.
patent: 7035202 (2006-04-01), Callon
patent: 7277631 (2007-10-01), Iyer et al.
patent: 2001/0015979 (2001-08-01), Hata et al.
“Presentation Slides”, Prepared by Zhidan Cheng and Doug Ricketts, Prepared before Dec. 10, 2002.
Cheng Zhidan
Wong Allen Tsz-Chiu
Lee Andrew
Pickering Mark C.
Tellabs Petaluma, Inc.
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