Path optimization in distributed service chains in a network environment
US9491094B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2013 |
| Grant date | Nov 8, 2016 |
| Priority date | — |
| Expiry date | Apr 17, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/308
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An example method for path optimization in distributed service chains in a network environment is provided and includes receiving information about inter-node latency of a distributed service chain in a network environment comprising a distributed virtual switch (DVS), where the inter-node latency is derived at least from packet headers of respective packets traversing a plurality of service nodes comprising the distributed service chain, and modifying locations of the service nodes in the DVS to reduce the inter-node latency. In specific embodiments, the method further includes storing and time-stamping a path history of each packet in a network service header portion of the respective packet header. A virtual Ethernet Module (VEM) of the DVS stores and time-stamps the path history and a last VEM in the distributed service chain calculates runtime traffic latencies from the path history and sends the calculated runtime traffic latencies to a virtual supervisor module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.