[v6ops] Minimum MTU size

Dragos Ilie <dragos.ilie@gmail.com> Tue, 31 January 2012 09:50 UTC

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Date: Tue, 31 Jan 2012 10:50:25 +0100
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From: Dragos Ilie <dragos.ilie@gmail.com>
To: v6ops@ietf.org
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Subject: [v6ops] Minimum MTU size
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Hello!

I am trying to find out the underlaying reason to select a 1280 bytes
minimum MTU for IPv6 (as opposed to any other value such as 1400 or
1500 bytes). For example, I heard that the reason for selecting a
576-bytes min MTU for IPv4 has to do with packet sizes for DNS and
X.25. I would appreciated it if somebody can explain the motivation
for the 1280-byte choice in the case of IPv6 or point me to relevant
information sources.

My apologies if this is the wrong forum for asking this question.

Sincerely,
Dragos