We describe a novel telemetry source available in public clouds today: periodic summaries of every flow that enters or leaves any VM. A key aspect is that such telemetry can be collected transparently to customers and with minimal impact on their workloads. By consuming this telemetry, we discuss how one may realize complete and dynamic communication graphs inside cloud subscriptions. We describe several novel analyses over these communication graphs with broad implications on network security and management.<\/p>\n","protected":false},"excerpt":{"rendered":"
We describe a novel telemetry source available in public clouds today: periodic summaries of every flow that enters or leaves any VM. A key aspect is that such telemetry can be collected transparently to customers and with minimal impact on their workloads. By consuming this telemetry, we discuss how one may realize complete and dynamic 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