Re: [quicwg/base-drafts] MSS and MTU (#592)

pravb <notifications@github.com> Thu, 16 November 2017 06:22 UTC

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Date: Thu, 16 Nov 2017 06:22:45 +0000
From: pravb <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] MSS and MTU (#592)
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I think kInitialWindow and kMinimumWindow need to refer to actual MSS rather than a constant kDefaultMss. For implementations that use the minimum value and do not do PMTU discovery they should use kDefaultMss 1232 or 1252. For implementations that do PMTU discovery the kDefaultMss will reflect the actual MSS for the path which could be as high as 9k - 40 when jumbo frames are configured in a DC network but typically would be similar to TCP i.e. 1460.

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