Chuck, I don't disagree that overall experience may be better for people with 
networks that don't have robust IPv6 capability, but there's nothing magical 
about v4 (or v6 either) that makes it "perform better" at layer 3. I know for a 
fact that v6 performs slightly better on my company's network because when we 
built it our, the overall topology had no multi-protocol legacy garbage for 
backwards compatibility. There's slightly less latency because of some 
optimization decisions we were able to make. That's not to say that SERVICES 
are better...based on poor understanding and implementation in most cases.

The more we actually USE v6 for services, the more we identify network 
architecture/deployment issues and are able to resolve them. Lets not encourage 
folks to stick their heads in the sand. 

Thanks.
Dan

Dan Geist dan(@)polter.net

----- Original Message -----

> If a machine has both IPv4 and IPv6 networking available, then prioritizing
> IPv4 or 6-in-4 over IPv6 is very likely to improve timekeeping performance.
> 
> (I've seen a few counterexamples where IPv6 worked better, but that is rare.)
> 
> Regards,
> --
> -Chuck
> 
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