Optical link quality monitoring in a computer network

Patent metadata

Field	Value
Publication number	US-8995829-B2
Application number	US-75840707-A
Country	US
Kind code	B2
Filing date	Jun 5, 2007
Priority date	Jun 5, 2007
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

In one embodiment, a local network device collects local optical power information for at least one of either a local optical transmit interface and a local optical receive interface of the local network device. The local network device may then exchange the local information for remote optical power information of corresponding remote optical receive and transmit interfaces of a remote network device at an opposing end of at least one corresponding optical link (fiber). For example, an exchange may use a point-to-point protocol which may dynamically determine/discover neighboring relationships between capable peer device interfaces and establish a suitable communication exchange between the capable peers. Based on the local information and exchanged remote information, the local network device may calculate an optical power loss of each corresponding optical link.

First claim

What is claimed is:

1. A method, comprising:
collecting Layer-1 parameters including local optical power information at a local network device for a local optical transmit interface of the local network device;
dynamically determining a neighbor relationship with a remote network device accessible via the local optical transmit interface using a Layer-2 or Layer-3 exchange protocol;
in response to the dynamically determining, sending an exchange protocol message from the local…

Assignees

• Barbieri Alessandro
• Foschiano Marco
• Cisco Tech Inc

Inventors

• Barbieri Alessandro
• Foschiano Marco

Classifications

• H04B10/0793 Primary

  Electricity · mapped topic

• H04J14/0221

  Electricity · mapped topic

• H04B10/07955

  Electricity · mapped topic

• H04J3/14

  Electricity · mapped topic