System, method and nodes for performance measurement in segment routing network
US11044187B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2018 |
| Grant date | Jun 22, 2021 |
| Priority date | — |
| Expiry date | Jun 8, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/10
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides performance measurement (PM) for segment routing (SR) with flexibility to have PM information piggy backed, preferably using service function chaining (SFC) to data packet itself or dedicate PM packet avoiding change in data packet. A performance measured flow (PMF) identifier is used by transit/egress nodes for statistics collection for a given PMF. The PMF identifier is carried in the piggy backed information without the use of separate SR label. The Piggy backed information carries the node information role of the node used by transit egress nodes to collect statistics for a given PM segment. The present disclosure collects the statistics for multiple segments and multiple PM types using a metadata present in single received packet, saving bandwidth and making PM calculation fast and more accurate. Using the present disclosure, the timer/configuration requirement per performance measurement instance from transit/egress node is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.