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[quicwg/base-drafts] Dead path timeout (#1638)

janaiyengar <notifications@github.com> Tue, 07 August 2018 19:33 UTC

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Subject: [quicwg/base-drafts] Dead path timeout (#1638)
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#1614 makes idle timeout more precise, but still leaves open the question of when a path is considered dead.  We still need a path timeout to close paths over which an endpoint cannot reach a peer.

My suggestion here is to have N RTOs be a value that's used for detecting a dead path, for some reasonable value of N (5? 7?). An endpoint can close the connection when a path is considered dead or can wait for a new path to become available (this is extremely useful when migrating from wifi to cell).

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