Passive reachability measurement for inline service chaining
US9479409B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2014 |
| Grant date | Oct 25, 2016 |
| Priority date | — |
| Expiry date | Feb 28, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is implemented by a computing device in communication with a network having a plurality of switches. The method performs path correctness testing where the path defines a service chain associated with a flow of data. The method configures the plurality of switches using a flow control protocol. The method includes the steps of selecting a switch from the path to configure path correctness testing, sending a configuration request to the selected switch to instate at least one rule for testing path correctness, receiving copies of flow packets from at least one switch in the path, and comparing the copies of flow packets with a service chain configuration of the flow to confirm path correctness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.