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8f0746e26a
- Roger has take over maintenance. - mtr now uses an "int" to pass options to the kernel. - Makes things work on Solaris and *BSD I'm told. - mtr doesn't fire off a flurry of packets when a new second comes around. Instead they are spaced evenly around the whole second. This allows people with a relatively slow first link to do meaningful measurements of whatever is behind that. source: ftp://ftp.bitwizard.nl/mtr/mtr-0.22.tar.gz
176 lines
3.1 KiB
Groff
176 lines
3.1 KiB
Groff
.TH MTR 8 "December 28, 1997" "mtr" "mtr"
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.SH NAME
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mtr \- a network diagnostic tool
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.SH SYNOPSIS
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.B mtr
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[\c
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.B \-hvrctgi\c
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]
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[\c
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.B \-\-help\c
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]
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[\c
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.B \-\-version\c
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]
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[\c
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.B \-\-report\c
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]
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[\c
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.B \-\-report\-cycles\ COUNT\c
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]
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[\c
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.B \-\-curses\c
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]
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[\c
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.B \-\-gtk\c
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]
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[\c
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.B \-\-interval\ SECONDS\c
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]
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.B HOSTNAME
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.SH DESCRIPTION
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.B mtr
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combines the functionaly of the
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.B traceroute
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and
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.B ping
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programs in a single network diagnostic tool.
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.PP
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As
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.B mtr
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starts, it investigates the network connection between the host
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.B mtr
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runs on and
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.BR HOSTNAME .
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After it determines the address of each network hop between the
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machines, it sends a sequence ICMP ECHO requests to each one to
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determine the quality of the link to each machine. As it does this,
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it prints running statistics about each machine.
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.SH OPTIONS
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.TP
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.B \-h
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.TP
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.B \-\-help
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.br
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Print the summary of command line argument options.
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.TP
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.B \-v
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.TP
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.B \-\-version
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.br
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Print the installed version of mtr.
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.TP
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.B \-r
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.TP
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.B \-\-report
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.br
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This option puts
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.B mtr
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into
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.B report
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mode. When in this mode,
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.B mtr
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will run for the number of cycles specified by the
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.B \-c
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option, and then print statistics and exit.
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.TP
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\c
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This mode is useful for generating statistics about network quality.
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Note that each running instance of
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.B mtr
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generates a significant amount of network traffic. Using
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.B mtr
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at to measure the quality of your network may result in decreased
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network performance.
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.TP
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.B \-c\ COUNT
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.TP
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.B \-\-report\-cycles\ COUNT
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Use this option to set the number of pings sent to determine
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both the machines on the network and the reliability of
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those machines. Each cycle lasts one second. This option
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is only useful with the
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.B -r
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option.
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.TP
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.B \-t
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.TP
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.B \-\-curses
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.br
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Use this option to force
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.B mtr
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to use the curses based terminal
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interface (if available).
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.TP
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.B \-g
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.TP
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.B \-\-gtk
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.br
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Use this option to force
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.B mtr
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to use the GTK+ based X11 window interface (if available).
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GTK+ must have been available on the system when
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.B mtr
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was built for this to work. See the GTK+ web page at
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.B http://www.gimp.org/gtk/
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for more information about GTK+.
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.TP
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.B \-i\ SECONDS
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.TP
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.B \-\-interval\ SECONDS
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.br
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Use this option to specify the positive number of seconds between ICMP
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ECHO requests. The default value for this parameter is one second.
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.SH BUGS
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Some modern routers give a lower priority to ICMP ECHO packets than
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to other network traffic. Consequently, the reliability of these
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routers reported by
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.B mtr
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will be significantly lower than the actual reliability of
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these routers.
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.SH CONTACT INFORMATION
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.PP
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For the latest version, see the mtr web page at
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.BR http://www.bitwizard.nl/mtr/ .
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.PP
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Subscribe to the mtr mailing list. All mtr related announcements
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are posted to the mtr mailing list. To subscribe, send email to
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.B majordomo@lists.xmission.com
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with
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.B subscribe\ mtr
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in the body of the message. To send a message to the mailing list, mail to
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.BR mtr@lists.xmission.com .
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.PP
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Bug reports and feature requests should be sent to the mtr
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mailing list.
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.SH "SEE ALSO"
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traceroute(8),
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ping(8).
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