TP-Link T1500-28TC TL-SL2428 T1500-28TCUN V1 Configuration Guide - Page 110

Managing Physical Interfaces Loopback Detection Configuration Loopback Detection Status Enable loopback detection globally. Detection Interval Set the interval of sending loopback detection packets. The valid values are from 1 to 1000 seconds and the default value is 30 seconds. Automatic Recovery Time Set the recovery time globally, after which the blocked port in Auto Recovery mode can automatically recover to normal status. It should be integral times of detection interval. The valid values are from 1 to 100, and the default value is 3. Web Refresh Status With this option enabled, the switch refreshes the web timely. By default, it is disabled. Web Refresh Interval If you enabled web refresh, set the refresh interval between 3 and 100 seconds. The default value is 6 seconds. 2) In the Port Config section, select one or multiple ports for configuration. Then set the parameters and click Apply. Status Enable loopback detection for the port. Operation Mode Select the operation mode when a loopback is detected on the port: Alert: The switch will display alerts. It is the default setting. Port Based: In addition to displaying alerts, the switch will block the port on which the loop is detected. Recovery Mode If you select Port Based as the operation mode, you also need to configure the recovery mode for the blocked port: Auto: The blocked port will automatically recover to normal status after the automatic recovery time. It is the default setting. Manual: You need to manually release the blocked port. Click the Recover button to release the selected port. 3) View the loopback detection information on this page. Loop Status Displays whether a loop is detected on the port. Block Status Displays whether the port is blocked. 6.2 Using the CLI Follow these steps to configure Loopback Detection: Step 1 configure Enter global configuration mode. Configuration Guide 89