Appendix A Network Troubleshooting
ping
The ping command line utility allows you to verify the connection and latency between your computer and either the
Syntax: ping target
The target can be an IP address or a host name.
Parameters: ping
The timeout parameter allows you to input the number of seconds (in milliseconds) that your computer waits for a reply.
The following examples show the typical output of this command:
C:\>ping www.zyxel.com
Pinging a1524.g.akamai.net [203.69.113.18] with 32 bytes of data:
Reply from 203.69.113.18: bytes=32 time=6ms TTL=56
Reply from 203.69.113.18: bytes=32 time=6ms TTL=56
Reply from 203.69.113.18: bytes=32 time=6ms TTL=56
Reply from 203.69.113.18: bytes=32 time=7ms TTL=48
Ping statistics for 203.69.113.18:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in
Minimum = 6ms, Maximum = 7ms, Average = 6ms
>
The number of bytes here indicates packet size. As most data is broken up into smaller packets, this makes the ping test fairly representative of a typical network connection. The default packet size on Windows is 32 bytes.
Time is the number of milliseconds the data requires to make the roundtrip journey from your computer to the destination host and back again. The lower the number, the faster the connection between the two points.
Note: Some hosts are deliberately configured to not respond to ping requests. As such, we suggest pinging two or three hosts when performing your ping test.
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