Stateful failover of service managers
US7443847B1 · kind B1 · utility
84Cited by
16References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Oct 28, 2008 |
| Priority date | — |
| Expiry date | Dec 20, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/76
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system and method are disclosed for providing a fault tolerant network service. A packet is received that corresponds to a flow from a forwarding agent at a primary service manager and instructions are determined at the primary service manager for handling packets corresponding to the flow. The instructions are sent to the forwarding agent and the instructions are stored at the primary service manager. A replication packet is sent to a backup service manager. The replication packet includes the instructions for handling packets corresponding to the flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.