TP-Link TL-SL5428E User Guide - Page 130

TL-SL5428E 24-port 10/100Mbps + 4-port Gigabit L2 Managed Switch CLI Guide tracert {url} [maxHops] Parameter url -- The IP address of the destination device. maxHops -- The maximum number of the route hops the test data can pass though. It ranges from 1 to 30. By default, this value is 4. Command Mode User EXEC Mode and Privileged EXEC Mode Example Test the connectivity between the switch and the network device with the IP 192.168.0.131. If the destination device has not been found after 20 maxHops, the connection between the switch and the destination device is failed to establish: TP-LINK# tracert 192.168.0.131 20 loopback Description The loopback command is used to test whether the port is available or not. Syntax loopback {port} { internal | external } Parameter port -- The number of the port which is selected for loopback test. It ranges from 1 to 28. internal | external -- Loopback Type. There are two options, Internal and External. Command Mode User EXEC Mode and Privileged EXEC Mode Example Do a Internal-type loopback test for port 4: TP-LINK#loopback 4 internal 118