Re: [quicwg/base-drafts] disable_active_migration with SPA (#3765)

Igor Lubashev <> Tue, 14 July 2020 04:00 UTC

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Date: Mon, 13 Jul 2020 21:00:05 -0700
From: Igor Lubashev <>
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Subject: Re: [quicwg/base-drafts] disable_active_migration with SPA (#3765)
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> I wonder if that has ever been the intent of the text. 

That could be asked of those who wrote the text and whose who provided their consensus. SPA (server migration) is a separate feature from client migration, controlled by disable_active_migration.  SPA does not have to involve client migration and better be controlled separately from it.

Change of protocol families is a cute feature of SPA, and we will see if it proves useful. There is typically a reason why a client chose the "wrong" family. In any case, existence of this feature necisates an update to the disable_active_migration sematic during the feature interactions.

I am pretty happy with the direction of @MikeBishop 's PR, since it restores an ability to provide a signal that "connection resumption is recommended instead of migration to another attachment".

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