IPv4 MTU detection
From: Rubens Kuhl rubensk@localhost
Date: Wed, 16 Dec 2009 12:24:47 -0200
I've started working with TTM a few days ago and I'm still sorting out
the tecnology and implementation... one thing though that I couldn't
find was MTU testing. A large carrier serving our country has suffered
this year from a failure mode that was really hard to detect:
load-balancing between multiple paths where some of the paths would have
a smaller than usual MTU (because it was backup capacity hired from
another carrier), and having that measurement would have helped.
I noticed that there is IPv6 MTU testing
(http://www.ripe.net/ttm/Plots/pmtu/tunneldiscovery.cgi) available but
couldn't find an IPv4 counterpart; is it available somewhere ?