[gentoo-dev] route lenghts

[Gaarde]

Here's a quick script to allow one to determine the distance between a
'client' and either one or several servers.  Theoretically, the fewer the
number of 'hops' between two devices on internet, the fewer the number of BGP
sessions, the lower the number of places 'things can go wrong', the lower the
latency, the faster the throughput.

Written in shell... mtr can be interchanged with traceroute, tcptraceroute,
etc.  Use as ye see fit.

--- CUT HERE ---
# AUTHOR:  gaarde at users dot sourceforge dot net
# Licence: GPL-2

# Trace to a server and find it's "distance" from us
function sroute () {
   route_len=`/usr/sbin/mtr -rc 1 $1 2> /dev/null | wc -l`;
   printf "%-2d %s\n" $route_len $1
}

# Trace to many servers using sroute and sort the results
function sroutes () {
   for aserver in $*; do
      sroute $aserver;
   done | sort --numeric-sort
}
--- END CUT ---

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"To thine own self be true." - Shakespeare

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