Hi there!
This time, I will share with you about the OSN 500 - auto-negotiation function.
The auto-negotiation function allows the network equipment to send information of its supported working mode to the opposite end on the network and to receive the corresponding information that the opposite end may transfer.
Auto-Negotiation Function of FE Electrical Ports
In the case of FE electrical ports, there are four common working modes: 10M half-duplex, 10M full-duplex, 100M half-duplex, and 100M full-duplex. If the working mode of the local FE electrical port does not match the working mode of the opposite FE electrical port, the two ports cannot communicate with each other. With the auto-negotiation function, however, the two ports can communicate with each other. The auto-negotiation function uses fast link pulses and normal link pulses to transfer the negotiation information of the working mode so that the working mode of the local FE electrical port matches the working mode of the opposite FE electrical port
Auto-Negotiation Function of GE Electrical Ports
In the case of GE electrical ports, there are five working modes: 10M half-duplex, 10M full-duplex, 100M half-duplex, 100M full-duplex, and 1000M full-duplex. The auto-negotiation function of GE electrical ports is similar to the auto-negotiation function of FE electrical ports.
Lists the auto-negotiation rules of GE electrical ports.
Auto-Negotiation Function of GE Optical Ports
GE optical ports support only the 1000M full-duplex working mode. The auto-negotiation function of GE optical ports is used only for negotiating the flow control function.
From group: Transport&Access Network
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