Service node selection by an inline service switch
US10225137B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2015 |
| Grant date | Mar 5, 2019 |
| Priority date | — |
| Expiry date | Aug 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Some embodiments provide novel inline switches that distribute data messages from source compute nodes (SCNs) to different groups of destination service compute nodes (DSCNs). In some embodiments, the inline switches are deployed in the source compute nodes datapaths (e.g., egress datapath). The inline switches in some embodiments are service switches that (1) receive data messages from the SCNs, (2) identify service nodes in a service-node cluster for processing the data messages based on service policies that the switches implement, and (3) use tunnels to send the received data messages to their identified service nodes. Alternatively, or conjunctively, the inline service switches of some embodiments (1) identify service-nodes cluster for processing the data messages based on service policies that the switches implement, and (2) use tunnels to send the received data messages to the identified service-node clusters. The service-node clusters can perform the same service or can perform different services in some embodiments. This tunnel-based approach for distributing data messages to service nodes/clusters is advantageous for seamlessly implementing in a datacenter a cloud-based X…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.