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| Chapter 6 Port Settings |
| Table 9 Port Configuration (continued) | |
| LABEL | DESCRIPTION |
| Flow Control | A concentration of traffic on a port decreases port bandwidth and overflows buffer |
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| memory causing packet discards and frame losses. Flow Control is used to regulate |
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| transmission of signals to match the bandwidth of the receiving port. |
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| The switch uses IEEE802.3x flow control in full duplex mode and backpressure flow |
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| control in half duplex mode. |
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| IEEE802.3x flow control is used in full duplex mode to send a pause signal to the |
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| sending port, causing it to temporarily stop sending signals when the receiving port |
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| memory buffers fill. |
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| Back Pressure flow control is typically used in half duplex mode to send a "collision" |
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| signal to the sending port (mimicking a state of packet collision) causing the sending |
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| port to temporarily stop sending signals and resend later. Select Enable to turn this |
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| 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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| PVID | Enter a number identifying an existing VLAN. The switch tags the incoming untagged |
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| frames on that port so that the frames are forwarded to the VLAN group that the tag |
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| defines. |
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| Apply | Click Apply to save your changes to the switch. |
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| 57 |
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