What is Flow Control?

Devices use flow control to ensure that the receiving device takes in all the data without error. If the transmitting device sends at a faster rate than the receiving device, then the receiving device will eventually have its buffer full. No further information can be taken when the buffer is full, so a flow control signal is sent to the transmitting device to temporarily stop the flow of incoming data. 
For each port, Flow Control can be enabled or disabled. 

Content réference
Ethernet Military Switch RES-SCE-AC-8US
Ethernet Military Switch RES-SCE-8MG
Ethernet Military Switch RES-SCE-12MG
Ethernet Military Switch RESMLAC-8US-CAPS
Ethernet Military Switch RESMLAC-8MG-CAPS
Ethernet Military Switch RESMLAC-8MG-CAPS F35
Ethernet Military Switch RESMLAC-28MG
Ethernet Military Switch RJSMLAC-8UG-CAPS
Ethernet Military Switch RJSMLAC-8MG-CAPS
Ethernet Military Switch RJSML-MG7F3G
Ethernet Military Switch RJSML-8US1/8UG1