Method and apparatus for checking connection of bi-directional LSP
US9667517B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2013 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Dec 14, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.