Microsoft Technology Licensing, LLC

Tao Deng

Jonathan Paul Rosenberg

Anish Sagar Narsian

Jiatong Wang

According to examples, a network control apparatus executes the live migration of a source bare-metal instance backed by a source software defined networking (SDN) appliance to a destination bare-metal instance associated with a destination software defined networking (SDN) appliance while minimizing data path downtime. The network control apparatus initially performs network allocations which include creating a shadow mapping. The network control apparatus triggers a forwarder on the source SDN appliance to forward data packets from network hosts destined for the source bare-metal instance to the destination SDN appliance until live migration is completed or mapping policy is updated. The mapping policy is updated by deleting shadow mapping when the live migration is complete and the source bare-metal instance is de-allocated and removed. The network control apparatus executes the live migration while minimizing the data path downtime so that applications on the destination bare-metal instance may continue to execute with minimal or no interruptions.

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Tao Deng