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 | Chapter 6 Port Settings | 
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 | Table 9 Port Configuration (continued) | |
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 | LABEL | DESCRIPTION | 
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 | 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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