Routing online application traffic based on path fate sharing metrics

An apparatus, comprising:

• one or more network interfaces;
• a processor coupled to the one or more network interfaces and configured to execute one or more processes;
• and
• a memory configured to store a process that is executable by the processor, the process when executed configured to:
• identify a plurality of paths between a pair of network addresses, wherein one of the pair of network addresses is associated with an online application;
• obtain telemetry data from the plurality of paths for the online application;
• compute, based on the telemetry data, fate sharing metrics for the plurality of paths, wherein the fate sharing metrics indicate how likely the plurality of paths are to provide acceptable or unacceptable application experience during any given time period;
• and
• control routing of application traffic for the online application between the pair of network addresses, based on the fate sharing metrics for the plurality of paths.

A tangible, non-transitory, computer-readable medium storing program instructions that cause a device to execute a process comprising:

• identifying, by the device, a plurality of paths between a pair of network addresses, wherein one of the pair of network addresses is associated with an online application;
• obtaining, by the device, telemetry data from the plurality of paths for the online application;
• computing, by the device and based on the telemetry data, fate sharing metrics for the plurality of paths, wherein the fate sharing metrics indicate how likely the plurality of paths are to provide acceptable or unacceptable application experience during any given time period;
• and
• controlling, by the device, routing of application traffic for the online application between the pair of network addresses, based on the fate sharing metrics for the plurality of paths.