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.

Date of Patent:
Jul. 30, 2019

Filed:

Dec. 07, 2017
Applicant:

Juniper Networks, Inc., Sunnyvale, CA (US);

Inventor:

Rathi Kartheek, Cupertino, CA (US);

Assignee:

Juniper Networks, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/703 (2013.01); H04L 12/707 (2013.01); H04B 10/80 (2013.01); H04B 10/032 (2013.01);
U.S. Cl.
CPC ...
H04L 45/28 (2013.01); H04B 10/032 (2013.01); H04B 10/80 (2013.01); H04L 45/22 (2013.01);
Abstract

In some embodiments, a system includes a first router and a second router both configured to be included within an OTN. The first router is configured to send to the second router a first signal having an ODU with a path delay measurement (DMp) bit set. The first router is configured to, in response to not receiving within a path-length-dependent time period from the second router a second signal having the DMp bit set, (1) trigger a protection action at the first router, and (2) send to the second router a signal configured to notify the second router to trigger the protection action at the second router. The second router is configured to, in response to receiving the signal configured to notify, trigger the protection action at the second router.


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