Flow control deals with the problem where a device receives frames faster than it can process them. The result is that the device is forced to drop some of the frames.
Fibre Channel uses two types of flow control.
- Buffer to Buffer and
- End to End
BB
Deals only with the link between an N_Port and an F_Port or between two N_Ports.
Ports on the link exchange values of how many frames can be received at a time from the other port.
EE
End-to-End flow control is not concerned with individual links instead it deals with the source and destination N_Ports.
Two N_Ports log into each other, they report how many receive buffers are available for the other port.
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