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Migrating middlebox state for distributed middleboxes

  • US 9,195,491 B2
  • Filed: 11/15/2012
  • Issued: 11/24/2015
  • Est. Priority Date: 11/15/2011
  • Status: Active Grant
First Claim
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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; and

    send middlebox state related to the VM to the migration module,wherein the migration module migrates the middlebox state to the second host.

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