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:
Jul. 21, 2009
Filed:
Jun. 08, 2005
Gongyuan Yao, Germantown, MD (US);
William Miller, Herndon, VA (US);
Lee Shombert, Herndon, VA (US);
Fang Gao, Rockville, MD (US);
John Diab, Santa Rosa, CA (US);
Ravi Singhal, Herndon, VA (US);
Stephane Muszynski, Washington, DC (US);
Ganesh Sundaram, Rohnert Park, CA (US);
Thomas Eric Ryle, Raleigh, NC (US);
Hitesh Amin, Petaluma, CA (US);
Gongyuan Yao, Germantown, MD (US);
William Miller, Herndon, VA (US);
Lee Shombert, Herndon, VA (US);
Fang Gao, Rockville, MD (US);
John Diab, Santa Rosa, CA (US);
Ravi Singhal, Herndon, VA (US);
Stephane Muszynski, Washington, DC (US);
Ganesh Sundaram, Rohnert Park, CA (US);
Thomas Eric Ryle, Raleigh, NC (US);
Hitesh Amin, Petaluma, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method and system for communicating state information between a local device and a remote device across a transport network is disclosed. Each of the local and remote devices operate independently from one another and at least one of the devices is configured for one-way traffic protection. The method includes receiving a protection message comprising K-bytes from one of the local and remote devices at the other of the local and remote devices and determining based on the received K-bytes, if there is a change in state at one of the devices. If a change in state is detected, a message is sent indicating the change in state from one of the local and remote devices to the other of the local and remote devices.