I've Done A Really Bad Thing

John Graddy jwgraddy at valornet.com
Thu May 23 00:43:05 UTC 2013


On 05/22/2013 07:38 PM, Paul Smith wrote:
> On Wed, 2013-05-22 at 19:17 -0500, John Graddy wrote:
>> I asked about IPV6 because when I asked about slow wireless
>> (admittedly a couple of years ago), I was advised to remove IPV6.
>>
>> I apologize for misleading those who replied.  I'm sorry about causing
>> people to essentially waste their time.
> You're not wrong, so don't feel bad.  Contrary to Liam's comment re "no
> possible causal connection", there have been many setups over the years
> where DNS does not work properly over IPv6, which leads to a significant
> slowdown of the entire network, as name resolution tries to use IPv6 and
> eventually times out and falls back to IPv4 DNS servers.  Even today not
> all network providers have their act together WRT IPv6.  Disabling IPv6
> was the recommended solution for these problems in many instances.
>
> By far the most common reason for a network to feel sluggish with no
> discernible cause is DNS resolver issues :-/.
>
> I do agree with Liam, though, that it is always a good idea to describe
> the top-level, 60,000 ft. view of your problem up-front in addition to
> jumping down into the ditch with the dirty details.  The details don't
> help if the problem is something completely different than what you
> suspect, which can easily happen.
>
> Cheers!
>
>


Thanks for the advice.

John




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