Chapter 8 Port
XGS1210-12 User’s Guide
38
The following table describes the labels in this screen.
Table 6 Port
LABEL DESCRIPTION
Storm Control
Broadcast Storm
Control
Enable traffic storm control on the Switch by specifying how many broadcast packets a port
receives per second.
Loop Detection /
Prevention
Select Loop Detection to allow the Switch to detect a loop on the port. The port becomes
active when the loop disappears.
Select Loop Prevention to allow the Switch to shut down a port automatically when it detects a
loop on the port.The port becomes active when the loop disappears.
Select Off to disable this feature.
Apply Click this button to save your changes to the Switch.
Port Setting
Port This identifies the Ethernet port on the Switch.
State Select Enable to enable the port or Disable to disable it.
Speed/Type Select the speed of the Ethernet connection on this port. The choices are:
• Auto for all ports
• 10 Mbps for ports 1~8
• 100 Mbps for ports 1~10
• 1000 Mbps for all ports
• 2.5 G for ports 9~10
• DAC for ports 11~12, when using the DAC (Direct Attach Copper) cable
• SFP+ 1000M for ports 11~12
• SFP+ 10G. for ports 11~12
Select Auto to have the Switch obtain the ports 1-8 connection speed of up to 1000 Mbps,
ports 9-10 connection speed of up to 2.5 Gbps, and ports 11-12 connection speed of up to 10
Gbps.
Flow Control A concentration of traffic on a port decreases port bandwidth and overflows buffer memory
causing packet discards and frame losses. Flow Control is used to regulate transmission of
signals to match the bandwidth of the receiving port.
The Switch uses IEEE802.3x flow control in full duplex mode and back pressure flow control in
half duplex mode.
IEEE802.3x flow control is used in full duplex mode to send a pause signal to the sending port,
causing it to temporarily stop sending signals when the receiving port memory buffers fill.
Back pressure flow control is typically used in half duplex mode to send a “collision” signal to
the sending port (mimicking a state of packet collision) causing the sending port to temporarily
stop sending signals and resend later. Select the check box to enable it.
Apply Click this button to save your changes to the Switch.
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