Detecting and communicating with silent hosts in software-defined networks

A system comprising:

• one or more processors;
• and
• a computer-readable medium comprising instructions stored therein, which when executed by the one or more processors, cause the one or more processors to:
• identify an interface of a fabric device that connects endpoints to a network fabric of a software-defined network;
• determine that an address of an endpoint connected to the interface is unavailable at the fabric device;
• transmit a notification to a control plane of the software-defined network based on a determination that the address of the endpoint is unavailable at the fabric device;
• and
• route traffic, that is intended for the endpoint through the network fabric, from the endpoint to the fabric device in response to the notification.

A non-transitory computer-readable storage medium comprising instructions stored therein, which when executed by one or more processors, cause the one or more processors to:

• identify an interface of a fabric device that connects endpoints to a network fabric of a software-defined network;
• determine that an address of an endpoint connected to the interface is unavailable at the fabric device;
• transmit a notification to a control plane of the software-defined network based on a determination that the address of the endpoint is unavailable at the fabric device;
• and
• route traffic, that is intended for the endpoint through the network fabric, from the endpoint to the fabric device in response to the notification.