Round robin on CNAME

[Nate Campi]

On Mon, Apr 01, 2002 at 07:43:08PM +0000, Barry Margolin wrote:
> In article <a8acu2$bgo at pub3.rc.vix.com>, Nate Campi  <nate at campin.net> wrote:
> >
> >On Mon, Apr 01, 2002 at 09:59:47AM +0100, Jim Reid wrote:
> >> >>>>> "Nate" == Nate Campi <nate at campin.net> writes:
> >> 
> >>     Nate> It's a small difference, but we're dealing with really busy
> >>     Nate> domain names here, and small differences matter. When a
> >>     Nate> CNAME is encountered, the query has to be rewritten with the
> >>     Nate> new name. This costs in computing resources, adding
> >>     Nate> latency. Following NS records without rewriting the query
> >>     Nate> would be better.
> >> 
> >> Frankly, this does not appear to be well thought out. Have you
> >> actually done an analysis to support or justify this argument? It
> >> would be interesting to see some numbers which compares both
> >> approaches. 
> >
> >There's no measurement needed. If I hand out a name for a nameserver
> >inside the lycos.com zone, remote resolvers head right for those IPs.
> 
> But since they're actually Akamai's nameservers, how are you planning on
> keeping the A records correct as Akamai adds and removes nameservers around
> the world?

That's what I need to talk to them about. This likely isn't an issue,
though, since they don't move IPs. They have a single IP that bounces
around to different hosts inside their network depending on conditions.
-- 
Nate

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