Re: Redirection to Other IP Addresses

Let me try to explain my proposal with some human language :)
1. the "Alt-Svc" behavior:
Client: Hi Server-1.1.1.1, can you send me the movie XXX?
Server-1.1.1.1: Here is the movie, but next time, you'd better ask server
2.2.2.2 for this movie.
(It then took 2 hours to deliver the movie)
2. my proposed behavior:
Client: Hi Server-1.1.1.1, can you send me the movie XXX?
Server-1.1.1.1: Sorry, I can't give you the movie, you need to ask server
2.2.2.2 for this movie.
Client: Hi Server-2.2.2.2, can you send me the movie XXX?
Server-2.2.2.2: Here is the movie.
(It then took 0.5 hours to deliver the movie, because server-2.2.2.2 is
closer to the client, or less loaded)

Bin

On Thu, Aug 1, 2019 at 12:56 AM Daniel Stenberg <daniel@haxx.se> wrote:

> On Thu, 1 Aug 2019, Jack Firth wrote:
>
> > Yes you could make a status code, but I don't follow why you need a new
> > status code instead of reusing a generic 300 response with body
> explaining
> > they need to follow Alt-Svc. A special status code requires clients to
> > implement new behavior, and if they're doing that already can't they just
> > implement Alt-Svc support instead?
>
> No, because Bin wants to (as I understand it) force the next request that
> uses
> that origin to *forcibly* use the new alternative IP address. I'm pretty
> sure
> most alt-svc implementations will not do that but will rather reuse
> existing
> connections (since the spec allows that and it is much faster) and then
> switch
> to the alternative only once a connection to that has been setup...
>
> --
>
>   / daniel.haxx.se
>


-- 

Bin Ni
VP of Engineering
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