mRSVP-TE based fast reroute in detour (1:1) protection mode
US9219614B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2013 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Nov 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/724
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An apparatus comprising a memory, and a processor coupled to the memory and configured to transmit a multicast Resource Reservation Protocol-Traffic Engineering (mRSVP-TE) path request (PATH) message upstream, wherein the PATH message requests reservation of a backup Label Switched Path (LSP) to protect an active LSP configured to transmit multicast data. The disclosure also includes a computer program product comprising computer executable instructions stored on a non-transitory computer readable medium such that when executed by a processor cause a network element (NE) to receive a multicast PATH message from a downstream node, wherein the NE acts as a Point of Local Repair (PLR) along an active LSP, wherein the active LSP is configured to transmit multicast data, and wherein the PATH message requests reservation of a backup LSP to protect the active LSP.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.