Apparatus and method for preventing loops in a computer network

Details Apparatus and method for preventing loops in a computer network Apparatus and method for preventing loops in a computer network

2006-05-15

2008-08-12

Phan, Raymond N (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S311000, C710S317000, C370S256000, C370S238000

Reexamination Certificate

active

07412557

ABSTRACT:
A network device is configured in a manner to prevent connectivity loops such as one way connectivity loops. A user configures a port of the network device to have an associated state. The state indicates that the port is for communication up the spanning tree towards a root network device, or down the spanning tree away from the root network device. The spanning tree protocol is then executed and determines a role for the port. The role determined by the spanning tree protocol is compared to the user selected state, and if there is an inconsistency, for example one that would indicate a one way connectivity loop, the port is blocked.

REFERENCES:
patent: 5150247 (1992-09-01), Sharpe et al.
patent: 5737316 (1998-04-01), Lee
patent: 5754941 (1998-05-01), Sharpe et al.
patent: 6032194 (2000-02-01), Gai et al.
patent: 6188694 (2001-02-01), Fine et al.
patent: 6202114 (2001-03-01), Dutt et al.
patent: 6219739 (2001-04-01), Dutt et al.
patent: 6317434 (2001-11-01), Deng
patent: 6519231 (2003-02-01), Ding et al.
patent: 6535491 (2003-03-01), Gai et al.
patent: 6578086 (2003-06-01), Regan et al.
patent: 6628624 (2003-09-01), Mahajan et al.
patent: 6681262 (2004-01-01), Rimmer
patent: 6697339 (2004-02-01), Jain
patent: 6728220 (2004-04-01), Behzadi
patent: 6944130 (2005-09-01), Chu et al.
patent: 6985449 (2006-01-01), Higashiyama
patent: 6987740 (2006-01-01), Di Benedetto et al.
Radia Perlman, “Interconnections Second Edition: Bridges, Routers, Switches, and Internetworking Protocols”, Sections 3.3-3.7 pp. 58-90, Addison Wesley longman, Inc. 2000.

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