Efficient path detection and validation between endpoints in large datacenters
US10298491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2016 |
| Grant date | May 21, 2019 |
| Priority date | — |
| Expiry date | Feb 11, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/245
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In response to a path monitoring task for a particular source/destination pair, a network controller determines whether stored information includes paths for the particular source/destination pair. When the stored information includes paths for the particular source/destination pair, a subset of source ports is selected that covers all the paths for the particular source/destination pair. A probe message is sent to cause an ingress switch to send probe packets using the subset of source ports. Paths for the particular source/destination pair are computed based on received probe packets. A determination is made whether a topology for the data center network has changed by comparing the paths computed based on the receive probe packets for the particular source/destination pair with the paths included in the stored information for the particular source/destination pair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.