The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2002
Filed:
Dec. 10, 1997
David A. Hughes, Mountain View, CA (US);
Isaac P. Choi, San Jose, CA (US);
Radhika Padmanabhan, San Jose, CA (US);
Neufito L. Fernandes, Cupertino, CA (US);
William P. Buckley, San Jose, CA (US);
Jeremy R Lawrence, San Jose, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A connection control interface for switches in a network is provided. The connection control interface allows the multiservice switch to provide a number of switch resource partitions to a number of independent controllers coupled to the switch. The switch resource partitions comprise a number of subsets of switch resources that define a number of independent subset networks of a physical network. The connection control interface allows the independent controllers to control the connections of the switch using the number of switch resource partitions. The independent controllers each use one of a number of control systems, the control systems comprising a network software level. The independent controllers comprise a virtual switch interface having a master component and a slave component where the master and slave components may be hosted on different processors. The slave components may be hosted on a control card that controls a number of port cards of the switch or on a port card processor. The switch and the independent controllers are resynchronized when discrepancies are detected between the connections on the switch and those expected by the each of the plurality of independent controllers.