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:
Feb. 03, 2009
Filed:
May. 11, 2005
Bhaskar Bhupalam, Sunnyvale, CA (US);
Arghya Mukherjee, Mountain View, CA (US);
Venkatanarayana Muppala, Santa Clara, CA (US);
Ian H. Wilson, Edinburgh, GB;
Bhaskar Bhupalam, Sunnyvale, CA (US);
Arghya Mukherjee, Mountain View, CA (US);
Venkatanarayana Muppala, Santa Clara, CA (US);
Ian H. Wilson, Edinburgh, GB;
Cisco Technology, Inc., San Jose, CA (US);
Abstract
Methods and apparatus to transition between four states that include a new state, a listening state, a standby state, and an active state. A router includes a plurality of virtual ports. The virtual ports include a master virtual port and one or more client virtual ports. In general, a selected one of the transitions is initiated after occurrence of an event, wherein the initiating of the selected transition is performed only with respect to the master virtual port. When a selected one of the transitions is initiated with respect to the master virtual port of the router, the selected transition is mimicked with respect to the one or more client virtual port(s) of the router.