Externally initiated application session endpoint migration
US10291723B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 21, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jun 5, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In storage networks (e.g., SAN and NAS), various reasons can arise for migrating an application layer communication session endpoint to a different host. To achieve scalability and robustness, the migration can be enacted externally and carried out at a middlebox at the transport layer. When a migration is triggered to migrate an application layer communication session endpoint from a host A to a host B, the middlebox coordinates network address translation with a transport protocol reset mechanism to switch the connection to host B and close the connection on host A with minimal disruption to the non-migrating application layer communication session endpoint using the connection. At the application layer, the non-migrating application layer communication session endpoint will initiate a new connection in response to detecting the reset, and retry any operation that was aborted as a result of the connection switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.