Qtech QSW-8200-28T-AC-DC Команды отладки и диагностики онлайн [6/25] 481627

User Manual

Chapter 1. Commands for Show 6

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 Function: Add the loghost sequence-number for the log; the no command does not

include the loghost sequence-number.

 Command Mode: Port mode

 Default: Do not include the sequence-number.

 Usage Guide: Use logging command to configure the loghost before this command is

set.

 Example: Open the loghost sequence-number.

 Switch(config)# logging loghost sequence-number

1.7 ping

 Command: ping [[src <source-address> ] { <destination-address> | host <hostname> }]

 Function: Issue ICMP request to remote devices, check whether the remote device can

be reached by the switch.

 Parameters: <source-address> is the source IP address where the ping command is

issued, with IP address in dotted decimal format. <destination-address> is the target IP

address of the ping command, with IP address in dotted decimal format. <hostname> is

the target host name of the ping command, which should not exceed 64 characters.

 Default: 5 ICMP echo requests will be sent. The default packet size and time out is 56

bytes and 2 seconds.

 Command Mode: Admin mode

 Usage Guide: When the ping command is entered without any parameters, interactive

configuration mode will be invoked. And ping parameters can be entered interactively.

 Example:

 Example 1: To ping with default parameters.

 Switch#ping 10.1.128.160

 Type ^c to abort.

 Sending 5 56-byte ICMP Echos to 10.1.128.160, timeout is 2 seconds.

 ...!!

 Success rate is 40 percent (2/5), round-trip min/avg/max = 0/0/0 ms

 In the example above, the switch is made to ping the device at 10.1.128.160. The

command did not receive ICMP reply packets for the first three ICMP echo requests

within default 2 seconds timeout. The ping failed for the first three tries. However, the

last two ping succeeded. So the success rate is 40%. It is denoted on the switch “.” for

ping failure which means unreachable link, while “!” for ping success, which means

reachable link.

 Example 2: Use ping command with source address configuration, and leave other

fields to default.

 Switch#ping src 10.1.128.161 10.1.128.160

 Type ^c to abort.