3com 2816 User Guide

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C
HAPTER
 4: C
ONFIGURING
 
THE
 S
WITCH
Label – Optional name for the port to help you 
identify the device connected to it. For example, if 
an access point is connected to this port, you can 
label it as Access Point.
Status – Enables and disables the port
Flow Control – Enables and disables flow control on 
the port. When flow control is enabled for the port, 
the Switch regulates the packet flow so that a 
sending device does not transmit more packets than 
a receiving device can process. If flow control is 
disabled, packets may be dropped under certain 
periods of high traffic. Flow control is enabled by 
default.
Speed Duplex – Sets the speed and duplex mode of 
the port. Available options include auto, 10 
half-duplex, 10 full-duplex, 100-half duplex, and 100 
full-duplex. For 1000 Mbps connections, see See 
"Speed/Duplex for 1000 Mbps Connections" on 
page 32.
Auto (or autonegotiation), which is enabled by 
default, sets the optimum combination of speed and 
duplex that can be supported by both ends of the 
link.
Priority – Set the priority for the traffic that passes 
through this port. Available options include Standard 
(default), HighIntermediate, and Low.
If you modify any of these basic port settings, click 
Apply to save your changes.
Figure 12   Basic Port Configuration Page
Speed/Duplex for 1000 Mbps Connections
You cannot preset the speed to 1000Mbps. To run a 
port at 1000Mbps, you must enable autonegotiation for 
the port. When autonegotiation is enabled, the Switch 
will automatically connect at 1000Mbps, providing the 
connected device also supports this speed.
1000Mbps connections are always full-duplex. 
Half-duplex connections are only available for 10Mbps 
and 100Mbps settings.
CAUTION: Before manually setting a port to full-duplex, 
verify that the device connected to the port is also 
manually set to the same speed and duplex setting. If 
connecting link partners are left to autonegotiate for a 
link manually set on this switch to full-duplex, they will