TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 User Guide - Page 55
DDM, 5.2.1 DDM Config
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Select: Port: Status: Operation Mode: Recovery Mode: Loop Status: Block Status: LAG: Manual Recover: Select the desired port for Loopback Detection configuration. It is multi-optional. Displays the port number. Enable or disable Loopback Detection function for the port. Select the mode how the switch processes the detected loops. Alert: When a loop is detected, display an alert. Port based: When a loop is detected, display an alert and block the port. Select the mode how the blocked port recovers to normal status. Auto: Block status can be automatically removed after recovery time. Manual: Block status only can be removed manually. Displays the port status whether a loopback is detected. Displays the port status about block or unblock. Displays the LAG number the port belongs to. Manually remove the block status of selected ports. Note: 1. Recovery Mode is not selectable when Alert is chosen in Operation Mode. 2. Loopback Detection must coordinate with storm control. 5.2 DDM The DDM (Digital Diagnostic Monitoring) function allows the user to monitor the status of the SFP modules inserting into the SFP ports on the switch. The user can choose to shut down the monitoring SFP port automatically when the specified parameter exceeds the alarm threshold or warning threshold. The monitoring parameters include: Temperature, Voltage, Bias Current, Tx Power and Rx Power. The DDM function is implemented on the following pages: DDM Config, Temperature Threshold, Voltage Threshold, Bias Current Threshold, Tx Power Threshold, Rx Power Threshold and DDM Status. 5.2.1 DDM Config On this page, you can view and configure the action that will occur on the specific ports when an exceeding alarm threshold or warning threshold event is encountered. The thresholds can be configured in the sections thereinafter: Temperature Threshold, Voltage Threshold, Bias Current Threshold, Tx Power Threshold and Rx Power Threshold. 45