Re: [DNSOP] Ask for advice of 3 new RRs for precise traffic scheduling

[Robert Edmonds <[e-mail]>]

左鹏 wrote:
> The "precise traffice scheduling" i mentioned is not only for performance reason, but also for capacity reason.

CDNs already have the ability to do precise traffic scheduling for both
performance and capacity reasons, using the existing capabilities built
into the DNS.

> yes, more resolvers are good to improve user experience.
> but also maybe we should notice each CDN node has different capacity.(it is the real in practice).
> a "weight-aware" rosolver can schedule clients to diffent nodes according to weight pricisely.
> or shall we do something only for authoritative server like defining the weighted A/AAAAx? 

No, the DNS's existing capabilities provide more than enough power for
CDNs for these use cases.

> btw, any comments on the weightd CNAMEXs for multi-CDN? :)

I don't have any direct experience of the multi-CDN use case. I would
think the intra-CDN case for CDN node selection can be generalized to
the multi-CDN case for CDN provider selection, though you probably have
fewer owner names to work with.

-- 
Robert Edmonds