IPv6 and Jumbo Frames

William F. Maton Sotomayor wmaton at ryouko.imsb.nrc.ca
Tue Apr 7 16:02:13 CEST 2009

On Tue, 7 Apr 2009, Bernhard Schmidt wrote:

> Does anyone have any experience how "jumbo-safe" the current IPv6
> networks are (read: how many networks break pMTU-discovery but at least
> do 1500 bytes through the whole path)?

Sounds like a nice little project to map the extent of this.  I can only 
imagine what happens when the jumbo finds its way to tunnels of doom.

I uppose one could try the method Joe St. Sauver outlined in his slides 
way back on jumbo frames with Internet 2 and his survey of various 


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