Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of controlling data flow over a communication network. For example, an apparatus may include a communication unit to control the transfer of a stream of data from a first device to a second device over a communication link, the stream of data including data to be delivered to a plurality of endpoints. For example, the controlling may include communicating between the first and second devices at least one message including at least one endpoint-specific credit consumption unit (CCU) defined with respect to at least one endpoint of the plurality of endpoints.

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of tearing down a Protocol Adaptation Layer (PAL) session. For example, an apparatus may include a first PAL communication unit to control a PAL connection, over a PAL, between a first device and a second device, the first PAL communication unit is to control the PAL connection during a session with a second PAL communication unit over a communication link, wherein the first PAL communication unit is to tear down the session according to a tear down procedure.

Abstract: Some demonstrative embodiments include apparatuses, systems and/or methods of controlling data flow over a communication network. For example, an apparatus may include a communication unit to communicate between first and second devices a transfer response, the transfer response in response to a transfer request, the transfer response including a transfer pending status indicating data is pending to be received at the second device, the communication unit is to communicate the transfer response regardless of whether a retry indicator of the transfer request represents a first request for transfer or a retried request.