Chapter 6 Port Settings
Table 8 Port Status (continued)
LABEL | DESCRIPTION |
Flow Control | Enables access to buffering resources for the port thus ensuring lossless operation |
| across network switches. This field displays either Enabled or Disabled. |
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PVID | The PVID field specifies what tag the incoming untagged frames receive on that port |
| so that the frames are forwarded to the VLAN group that the tag defines. |
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6.2 Port Configuration
Use this screen to configure individual port settings.Click a port number in the Port Status screen to access this screen.
Figure 28 Port Configuration
The following table describes the labels in this screen.
Table 9 Port Configuration
LABEL | DESCRIPTION |
Port | This is the port index number. |
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Admin | Select Enable to activate the port or Disable to deactivate the port. |
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Auto Negotiate | Select Enable and the port will negotiate the speed, duplex mode and flow control |
| settings with the peer port. If the peer port does not support |
| off this feature, the switch determines the connection speed by detecting the signal on |
| the cable and using half duplex mode. |
| Select Disable to configure the port settings manually. When the switch’s auto- |
| negotiation is turned off, a port uses the |
| making a connection, thus requiring you to make sure that the settings of the peer |
| port are the same in order to connect. |
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Speed Duplex | Select the speed and the duplex mode of the Ethernet connection on this port. |
| Choices are 10Mbps Half, 10Mbps Full, 100Mbps Half, 100Mbps Full and |
| 1000Mbps Full (for Gigabit ports only). |
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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 backpressure 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 Enable to turn this |
| feature on or select Disable to turn it off. |
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Default Priority | This priority value is added to incoming frames without a priority queue tag. |
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56 |
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