[131861] in North American Network Operators' Group

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Re: RINA - scott whaps at the nanog hornets nest :-)

daemon@ATHENA.MIT.EDU (sthaug@nethelp.no)
Sat Nov 6 17:40:36 2010

Date: Sat, 06 Nov 2010 22:40:29 +0100 (CET)
To: gbonser@seven.com
From: sthaug@nethelp.no
In-Reply-To: <5A6D953473350C4B9995546AFE9939EE0B14C7D8@RWC-EX1.corp.seven.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

> RFC 4821 PMTUD is that "negotiation" that is "lacking".  It is there.
> It is deployed.  It actually works.  No more relying on someone sending
> the ICMP packets through in order for PMTUD to work!

For some value of "works". There are way too many places filtering
ICMP for PMTUD to work consistently. PMTUD is *not* the solution,
unfortunately.

Steinar Haug, Nethelp consulting, sthaug@nethelp.no


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