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Re: [v6ops] PMTUD forever, was: MTUs on the general Internet

Philip Homburg <pch-v6ops-3@u-1.phicoh.com> Fri, 05 December 2014 10:38 UTC

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In-reply-to: Your message of "Fri, 5 Dec 2014 11:05:46 +0100 ." <20141205110546.2ef6ebf1@echo.ms.redpill-linpro.com>
Date: Fri, 05 Dec 2014 11:38:04 +0100
Archived-At: http://mailarchive.ietf.org/arch/msg/v6ops/9bHPVT9FzJGZbpnKtWgYXhXGDzM
Subject: Re: [v6ops] PMTUD forever, was: MTUs on the general Internet
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In your letter dated Fri, 5 Dec 2014 11:05:46 +0100 you wrote:
>Also, increasing the outer MTU to 1520+ is impossible in most cases,
>because you have to be certain that *every* device in the network
>(including any user-owned/managed HGWs) supports mini-jumbos.

Another way forward is to have to 'internet facing' side of the tunnel forward
large packets fragmented. Assuming that the 'small' other endpoint can reassemble
them. Traffic toward 'the internet' can be considered local and can be fixed to
properly deal with PMTU detection.

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