Re: [quicwg/base-drafts] Preferred Address needs clarifications (#3432)

notonymous <notifications@github.com> Wed, 12 February 2020 21:44 UTC

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Subject: Re: [quicwg/base-drafts] Preferred Address needs clarifications (#3432)
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>
> If the server isn't willing at all to handle connections on its published IP address, then (naively) it shouldn't accept connections on that IP address and should publish the other one instead. 
>

I thought the use case in section 9.6 was pretty clear -- "This is particularly useful when clients initially connect to an address shared by multiple servers but [the server] would prefer to use a unicast address to ensure connection stability".

Migrating to a unicast address avoids having to perform connection-based routing through a load balancer.

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