[104318] in North American Network Operators' Group

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Re: [NANOG] Microsoft.com PMTUD black hole?

daemon@ATHENA.MIT.EDU (Brandon Butterworth)
Tue May 6 15:58:51 2008

Date: Tue, 6 May 2008 20:58:38 +0100 (BST)
From: Brandon Butterworth <brandon@rd.bbc.co.uk>
To: nanog@merit.edu
Errors-To: nanog-bounces@nanog.org

> Has anyone else here seen problems with microsoft/msn/hotmail/live.com 
> sites not performing PMTUD correctly?

I used to see it a lot when hosting on windows was popular and people
realised they needed a firewall or decided to add a load balancer
but broke PMTUD by leaving it enabled on the servers.

I've not heard of it for some time so those people got
a clue or moved to something else (or everyone worked around them)

brandon

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