Passive performance measurement for inline service chaining
US9705775B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2014 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Jul 18, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/38
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is implemented by a network device to monitor the performance of packet processing in an in-line service chain, the network device one of a plurality of network devices forming a software defined network (SDN) and the in-line service chain. The SDN includes a controller to configure the plurality of network devices. The method includes receiving a sequence of packets of a data flow traversing the in-line service chain, applying a hash function to the sequence of packets of the data flow to generate a set of hash values for the sequence of packets, and sending the set of hash values and a set of timestamps for the sequence of packets to the controller to determine delay and loss across a service of the in-line service chain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.