5.4 Auto-Negotiation
The 100Base-TX 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 mode and speed at the second device is capable of. The 100Base-TX devices can connect with the 100Base-TX port in either Half- or Full-Duplex mode.
If attached device is: | 100Base-TX port will set to: |
100Mbps, no auto-negotiation | 100Mbps |
| (100Base-TX, Half-Duplex) |
| |
100Mbps, with auto-negotiation | 200Mbps |
| (100Base-TX, Full-Duplex) |
10Mbps, no auto-negotiation | 10Mbps |
| (10Base-T, Half-Duplex) |
| |
10Mbps, with auto-negotiation | 20Mbps |
| (10Base-T, Full-Duplex) |
| |
5.5 MAC Address Table
This 6-byte ID is called the MAC (Media Access Control) Address. Every Ethernet data packet includes both source and destination addresses.
The Switch can automatically learn and store up to 2K MAC addresses. The MAC address table is volatile: it disappears when the switch is powered off or reset.
Note: When the network needs reconfiguration, we recommend turning off the power first. After all nodes have been moved, power on the switch to rebuild the internal MAC address table.
FNSW-16/2400S User’s Guide | 25 |
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