5 auto-negotiation – PLANET FNSW-1602S User Manual
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The Switch performs “Store and forward” therefore, no error packets occur. More reliably, 
it reduces the re-transmission rate. No packet loss will occur.
4.5 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:
100Base-TX port will set to:
·10Mbps, no auto-negotiation
10Mbps
·10Mbps, with auto-negotiation
10/20Mbps (10Base-T/Full-Duplex)
·100Mbps, no auto-negotiation
100Mbps
·100Mbps, with auto-negotiation
100/200Mbps (100Base-TX/Full-Duplex)