nanog mailing list archives
Re: Return two locations or low TTL [was: DNS caches that support partitioning ?]
From: "Dobbins, Roland" <rdobbins () arbor net>
Date: Mon, 20 Aug 2012 14:07:34 +0000
On Aug 20, 2012, at 5:56 PM, Patrick W. Gilmore wrote:
My question above is asking Mark how you guarantee the user/application selects the A record closest to them and only use the other A record when the closer one is unavailable.
I understand - my point was that folks using a GSLB-type solution would generally include availability probing in the GSLB stack, so that a given instance won't be included in answers if it's locally unavailable (obviously, the GSLB can't know about all path elements between the querying resolver and the desired server/service). ----------------------------------------------------------------------- Roland Dobbins <rdobbins () arbor net> // <http://www.arbornetworks.com> Luck is the residue of opportunity and design. -- John Milton
Current thread:
- Re: DNS caches that support partitioning ?, (continued)
- Re: DNS caches that support partitioning ? Jimmy Hess (Aug 18)
- Re: DNS caches that support partitioning ? Patrick W. Gilmore (Aug 18)
- Re: DNS caches that support partitioning ? Chris Woodfield (Aug 19)
- Re: DNS caches that support partitioning ? Mark Andrews (Aug 19)
- Re: DNS caches that support partitioning ? William Herrin (Aug 19)
- Re: DNS caches that support partitioning ? Jimmy Hess (Aug 19)
- Re: DNS caches that support partitioning ? Gary Buhrmaster (Aug 19)
- Return two locations or low TTL [was: DNS caches that support partitioning ?] Patrick W. Gilmore (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Dobbins, Roland (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Patrick W. Gilmore (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Dobbins, Roland (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Patrick W. Gilmore (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Mark Andrews (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Tony Finch (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Patrick W. Gilmore (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Chris Adams (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Patrick W. Gilmore (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Tony Finch (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Shumon Huque (Aug 20)
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Tony Finch (Aug 20)
- Message not available
- Re: Return two locations or low TTL [was: DNS caches that support partitioning ?] Tim Chown (Aug 20)