07565442 is referenced by 2 patents and cites 23 patents.

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.

Title
Method and system for supporting distance extension in networks having Y-cable protection
Application Number
11/147488
Publication Number
7565442 (B1)
Application Date
June 8, 2005
Publication Date
July 21, 2009
Inventor
Hitesh Amin
Petaluma
CA, US
Thomas Eric Ryle
Raleigh
NC, US
Ganesh Sundaram
Rohnert Park
CA, US
Stephane Muszynski
Washington
DC, US
Ravi Singhal
Herndon
VA, US
John Diab
Santa Rosa
CA, US
Fang Gao
Rockville
MD, US
Lee Shombert
Herndon
VA, US
William Miller
Herndon
VA, US
Gongyuan Yao
Germantown
MD, US
Agent
Cindy Kaplan
Assignee
Cisco Technology
CA, US
IPC
H04J 3/16
G06F 15/16
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