![]() This option sets the packet size used for probing. Use this option to set the number of pings sent to determine both the machines on the network and the reliability of those machines. The root user may choose values between zero and one. The default value for this parameter is one second. Use this option to specify the positive number of seconds between ICMP ECHO requests. Equivalent to -ipinfo 0.Įxample (columns to the right not shown for clarity): 1. z, -aslookupĭisplays the Autonomous System (AS) number alongside each hop. It is possible to cycle between these fields at runtime (using the y key). Valid values for n are: 0ĭisplay the allocation date of the IP prefix You may use one or more space characters to separate fields.Įxample: -o "LSD NBAW X" -y n, -ipinfo nĭisplays information about each IP hop. Use this option to specify which fields to display and in which order. ![]() Use the wide report (-w) mode to see the IPs in report mode. In report mode, there is usually too little space to add the IPs, and they will be truncated. In split mode this adds an extra field to the output. Use this option to tell mtr to display both the host names and numeric IP numbers. Use this option to force mtr to display numeric IP numbers and not try to resolve the host names. Use this option to set mtr to spit out a format that is suitable for a split-user interface. Jansson library must have been available on the system when mtr was built for this to work. This format is better suited for automated processing of the measurement results. Use this option to tell mtr to use the JSON output format. (Note: The separator is actually a semi-colon ' '.)Įxample of the CSV output format: MTR.0.86+git:16e39fc0 1435562787 OK nic.is 1 288 Use the Comma-Separated-Value (CSV) output format. It could be parsed to be presented into any of the other display methods.Įxample of the raw output format: h 0 10.1.1.1 This format is better suited for archival of the measurement results. See the GTK+ web page at for more information about GTK+. GTK+ must have been available on the system when mtr was built for this to work. Use this option to force mtr to use the GTK+ based X11 window interface (if available). Use this option to select the initial display mode: 0 (default) selects statistics, 1 selects the stripchart without latency information, and 2 selects the stripchart with latency information. In case the list of hops exceeds the height of your terminal, you can use the + and - keys to scroll up and down half a page.Ĭtrl- L clears spurious error messages that may overwrite other parts of the display. Use this option to force mtr to use the curses based terminal interface (if available). Use this option to tell mtr to use the xml output format. When in this mode, mtr will not cut hostnames in the report. This option puts mtr into wide report mode. Using mtr to measure the quality of your network may result in decreased network performance. ![]() Note that each running instance of mtr generates a significant amount of network traffic. This mode is useful for generating statistics about network quality. When in this mode, mtr will run for the number of cycles specified by the -c option, and then print statistics and exit. Reads the list of hostnames from the specified file. (IPV4 may be used for DNS lookups.) -F FILENAME, -filename FILENAME Print the summary of command line argument options.
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