TP-Link T1600G-18TSTL-SG2216 T1600G-18TSUN V1 Configuration Guide - Page 117
Using the CLI, Follow these steps to con Loopback Detection
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Managing Physical Interfaces Loopback Detection Configuration Automatic Recovery Time Set the recovery time globally, after which the blocked port/VLAN in Auto Recovery mode can automatically recover to normal status. The valid values are from 60 to 1000000 seconds and the default value is 90 seconds. 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 loop is detected on the port: Alert: When a loop is detected, the switch will send a trap message and generate an entry on the log file. It is the default setting. Port Based: When a loop is detected, the switch will send a trap message and generate an entry on the log file. In addition, the switch will totally block the port on which the loop is detected and no packets can pass through the port. Recovery Mode If you select Port Based as the operation mode, you also need to configure the recovery mode for the blocked port/VLAN: Auto: The blocked port/VLAN 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/VLAN. Click the Recover button to release the corresponding port/VLAN. 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. Step 2 loopback-detection Enable the loopback detection feature globally. By default, it is disabled. Configuration Guide 94
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