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:
May. 30, 2017
Filed:
Nov. 18, 2013
Alcatel Lucent, Boulogne-Billancourt, FR;
Alcatel Lucent, Boulogne-Billancourt, FR;
Abstract
A method for checking connectivity between a first device and a second device on a bidirectional Label Switched Path LSP, includes the first device sends, to the second device, an echo request including a reply mode and a return address, the reply mode requesting an echo reply to be delivered through backward LSP, and the return address being the unique ID of the first device; the first device receives an echo reply from the second device, the echo reply including the unique ID of the first device and return code related to connectivity of the backward LSP; and the first device correlates the echo reply with the echo request to verify connectivity between the two devices on the bidirectional Label Switched Paths.