GE MULTILINK ML2400 Instruction Manual page 64

OPERATION
Note
4–4
In half-duplex mode, the ML2400 implements a back-pressure algorithm on 10/100 Mb
ports for flow control. That is, the switch prevents frames from entering the device by
forcing a collision indication on the half-duplex ports that are receiving. This temporary
"collision" delay allows the available buffer space to improve as the switch catches up with
the traffic flow.
MULTILINK ML2400 ETHERNET COMMUNICATIONS SWITCH – INSTRUCTION MANUAL
CHAPTER 4: OPERATION