Migrating middlebox state for distributed middleboxes
US9552219B2 · kind B2 · utility
18Cited by
80References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 16, 2015 |
| Grant date | Jan 24, 2017 |
| Priority date | — |
| Expiry date | Nov 16, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L49/15
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A controller of a network control system for configuring several middlebox instances is described. The middlebox instances implement a middlebox in a distributed manner in several hosts. The controller configures, in a first host, a first middlebox instance to receive a notification from a migration module before a virtual machine (VM) running in the first host migrates to a second host and to send middlebox state related to the VM to the migration module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.