Overlay network hardware service chaining
US11025539B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Oct 26, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/74591
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Presented herein are techniques to support service chains in a network, such as a spine-leaf switch fabric network, that also uses overlay networking technology. More specifically, in accordance with the techniques presented herein, a linecard at an ingress network node for an overlay network is configured to receive a packet. Using information obtained from the packet, a hardware lookup is performed at the linecard to identify a service chain with which the packet is associated. An entry corresponding to the identified service chain is identified within a memory location of the linecard, where the entry includes overlay network information for forwarding packets along the identified service chain via an overlay network. Using the overlay network information included in the identified entry, the packet is encapsulated with an overlay packet header for use in forwarding the packet via the overlay network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.