◦Not intended to solve the problem of steady-state overloaded networks or links.
◦It is not intended to address lack of network capacity. Properly used, flow control can be a useful tool to address short term overloads on a single link.
◦Not intended to provide end-to-end flow control. End-to-end mechanisms, typically at the Transport Layer are intended to address such issues. The most common example is TCP Windows, which provide end-to-end flow control between source and destination for individual L3/L4 flows.