TP-Link T2500-28TCTL-SL5428E T2500-28TCUN V1 CLI Reference Guide - Page 157

T2500-28TC JetStream L2 Managed Switch CLI Guide Upgrade the switch system file named as firmware.bin via the TFTP server with the IP address fe80::1234 T2500-28TC# firmware upgrade ip-address fe80::1234 filename firmware.bin ping Description The ping command is used to test the connectivity between the switch and one node of the network. Syntax ping [ ip | ipv6 ] { ip_addr } [ -n count ] [ -l count ] [ -i count ] Parameter ip -- The type of the IP address for ping test should be IPv4. ipv6 -- The type of the IP address for ping test should be IPv6. ip_addr -- The IP address of the destination node for ping test. If the parameter ip/ipv6 is not selected, both IPv4 and IPv6 addresses are supported, for example 192.168.0.100 or fe80::1234. -n count -- The amount of times to send test data during Ping testing. It ranges from 1 to 10. By default, this value is 4. -l count -- The size of the sending data during ping testing. It ranges from 1 to 1024 bytes. By default, this value is 64. -i count -- The interval to send ICMP request packets. It ranges from 100 to 1000 milliseconds. By default, this value is 1000. Command Mode User EXEC Mode and Privileged EXEC Mode Example To test the connectivity between the switch and the network device with the IP 192.168.0.131, please specify the count (-l) as 512 bytes and count (-i) as 1000 milliseconds. If there is not any response after 8 times' Ping test, the connection between the switch and the network device is failed to establish: T2500-28TC# ping 192.168.0.131 -n 8 -l 512 To test the connectivity between the switch and the network device with the IP fe80::1234, please specify the count (-l) as 512 bytes and count (-i) as 1000 140