Migrating middlebox state for distributed middleboxes

摘要

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.

主权项

1. A non-transitory machine readable medium of a controller of a network control system for configuring a plurality of middlebox instances to implement a middlebox in a distributed manner in a plurality of hosts, the non-transitory machine readable medium storing sets of instructions for:
configuring, 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; andsend middlebox state related to the VM to the migration module, wherein the migration module migrates the middlebox state to the second host.