I-D on operational MTU/fragmentation issues in tunneling

Tue Oct 19 18:33:09 UTC 2004

On Thu, 14 Oct 2004, Joe Maimon wrote:

> Sabri Berisha wrote:
>
>> On Mon, Oct 11, 2004 at 11:12:55AM +0300, Pekka Savola wrote:
>> 
>> Hi Pekka and others,
>> 
>> 
>>> Please send comments to me by the end of this week, either on- of
>>> off-list, as you deem appropriate.
>>> 
>> 
>> With the risk of stating the obvious I would say that normally, PMTUD
>> should do the trick. 
> On todays internet everything is more reliable than PMTUD.
>
> How about replacing it completely with something more inband, less prone to 
> firewall breakage?

You mean something like Packetization Layer Path MTU Discovery (PLPMTUD)?

http://www.ietf.org/internet-drafts/draft-ietf-pmtud-method-02.txt

http://www.psc.edu/~mathis/MTU/pmtud/

Sam