nanog mailing list archives
Re: Slashdot: Providers Ignoring DNS TTL?
From: Dean Anderson <dean () av8 com>
Date: Fri, 22 Apr 2005 23:21:52 -0400 (EDT)
On Wed, 20 Apr 2005 Valdis.Kletnieks () vt edu wrote:
On Wed, 20 Apr 2005 14:00:00 EDT, Dean Anderson said:On Wed, 20 Apr 2005 sthaug () nethelp no wrote:Where do you see any connection between anycast and ignoring DNS TTL?The data he showed isn't necessarilly "ignoring ttl". If there are multiple anycasted caching servers behind a specific IP address, then those several cache's will each have a different state. Since, [as I explained, and was supposed by the poster], there is "some kind of load balancing going on", and also since implementors of anycast caches have posted questions and explained their purposes [which could be seen as "load balancing"], this is a likely explanation. It may not be the only explanation: e.g. they could be restarting their nameservers every thirty seconds. But "anycast loadbalancing" of a caching server is probably the most likely.All fine and good. But nowhere in your long paragraph do you actually address Steinar's question, which is "What does this rant have to do with *ignoring* *DNS* *TTL*?"
Try actually reading the long paragraph. It starts with the interesting sentence 'The data he showed isn't necessarilly "ignoring ttl".', and I then explain why that is. -- Av8 Internet Prepared to pay a premium for better service? www.av8.net faster, more reliable, better service 617 344 9000
Current thread:
- Slashdot: Providers Ignoring DNS TTL? Fergie (Paul Ferguson) (Apr 19)
- Re: Slashdot: Providers Ignoring DNS TTL? Jim Popovitch (Apr 19)
- Re: Slashdot: Providers Ignoring DNS TTL? Crist Clark (Apr 19)
- Re: Slashdot: Providers Ignoring DNS TTL? Dean Anderson (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? sthaug (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Dean Anderson (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Chris Adams (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Valdis . Kletnieks (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Dean Anderson (Apr 22)
- Re: Slashdot: Providers Ignoring DNS TTL? Stephen J. Wilcox (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Dean Anderson (Apr 22)
- Re: Slashdot: Providers Ignoring DNS TTL? Stephen J. Wilcox (Apr 23)
- Re: Slashdot: Providers Ignoring DNS TTL? Dean Anderson (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Crist Clark (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Dean Anderson (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Patrick W. Gilmore (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? sthaug (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Steve Gibbard (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? sthaug (Apr 20)
- Re: Slashdot: Providers Ignoring DNS TTL? Dean Anderson (Apr 20)