Auto-Negotiation - Planet GS-4210-24T4SR User Manual

7.5 Auto-Negotiation

The STP ports on the Switch have built-in "Auto-negotiation". This technology automatically sets the best possible bandwidth
when a connection is established with another network device (usually at Power On or Reset). This is done by detect the modes
and speeds at the second of both device is connected and capable of, both 10BASE-T and 100BASE-TX devices can connect
with the port in either Half- or Full-Duplex mode.
If attached device is:
10Mbps, no auto-negotiation
10Mbps, with auto-negotiation
100Mbps, no auto-negotiation
100Mbps, with auto-negotiation
100BASE-TX port will set to:
10Mbps.
10/20Mbps (10BASE-T/Full-Duplex)
100Mbps
100/200Mbps (100BASE-TX/Full-Duplex)
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User's Manual of GS-4210 Series