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Re: [quicwg/base-drafts] loss of only two packets can lead to an unrecoverable situation (#2267)

Christian Huitema <notifications@github.com> Mon, 07 January 2019 07:23 UTC

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Subject: Re: [quicwg/base-drafts] loss of only two packets can lead to an unrecoverable situation (#2267)
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@martinthomson: MSL in TCP is determine by the practical observations of how long packets can reside in networks. There are measurement papers describing that. At least 30 seconds has been observed in practice, for example due to routers freezing and then restarting, or other bugs of that nature. Since TCP has by default no crypto, the very old packet could be accepted by chance in a new connection and cause havoc. Hence the use of the MSL timer, especially in the FIN-WAIT state.

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