Re: [pmtud] Minutes for PMTUD at IETF60

[Fred Templin <osprey67 at yahoo.com>]

Matt,

 

Just to further clarify, yes I mis-spoke when I said MSS. The point I was

trying to make was that the plPMTUD *probe size* might be larger than

the MTU of the smallest link on the path - but as long as the correct link

adaptation is happening, this should be considered normal-case.

 

As long as the probes and equal-sized protocol data units are delivered

deterministically along the path, there is no problem (maybe this is

already clear enough from the draft).

 

Fred

osprey67 at yahoo.com

Matthew J Zekauskas <matt at internet2.edu> wrote:

> Fred Templin thought that this probed for the maximum segment size, rather
> than maximum MTU, and we might end up with too large value. Matt 
> Mathis clarified the issue: segment size is the natural unit for TCP.
> The plPMTUD layering needs to translate between MSS and MTU. The 
> primary difficulty of the draft is describing this translation
> clearly everywhere it is needed.
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