nanog mailing list archives
RE: DNS Based Load Balancers
From: "David Temkin" <dave () rightmedia com>
Date: Sun, 2 Jul 2006 17:55:53 -0700
The problem being that most of what you linked to below is either A) out of date, or B) the only way to get proximity based load balancing (GSLB type stuff) with them is with DNS tricks. Breaking it down in order: The IBM solution hasn't been updated since 1999. It also seems relatively proprietary. The Cisco solution relies on either doing HTTP redirects (which is useless if you're not doing HTTP) or DNS. Both Foundry and Radware rely 100% on DNS to do their GSLB. You can do local load balancing on both boxes without, however. The last link is an outdated thesis paper that makes reference moreso to local load balancing and not global. It seems that in lieu of a real, currently produced solution, the only option is presently DNS to meet the requirements. Others have sent me off-list stuff they're working on, but none of it's ready for prime time. -Dave
-----Original Message----- From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of Paul Vixie Sent: Sunday, July 02, 2006 2:03 PM To: nanog () merit edu Subject: Re: DNS Based Load Balancers dave () rightmedia com ("David Temkin") writes:So, you guys have been pretty clear on what he shouldn't do. What should he do as an alternative to using DNS for aproximity basedsolution?http://www.redbooks.ibm.com/redbooks/pdfs/sg245858.pdf http://www.cisco.com/univercd/cc/td/doc/product/iaabu/distrdir /dd2501/ovr.htm http://www.radware.com/content/products/library/faq_wsd.pdf http://www.foundrynet.com/solutions/appNotes/GSLB.html http://www.ifi.unizh.ch/ifiadmin/staff/rofrei/DA/DA_Arbeiten_2
000/Masutti_Oliver.pdf
note that several of these describe or offer a dns-based solution as an option, but they all describe session-level redirection and most recommend that (as i do) and some even say "using dns for this is bad" (as i do, but for different reasons.) -- Paul Vixie
Current thread:
- Re: DNS Based Load Balancers Paul Vixie (Jul 01)
- Re: DNS Based Load Balancers Matt Ghali (Jul 01)
- RE: DNS Based Load Balancers David Temkin (Jul 02)
- Re: DNS Based Load Balancers Paul Vixie (Jul 02)
- RE: DNS Based Load Balancers David Temkin (Jul 02)
- Re: DNS Based Load Balancers Paul Vixie (Jul 02)
- Re: DNS Based Load Balancers John Payne (Jul 03)
- RE: DNS Based Load Balancers David Temkin (Jul 03)
- Re: DNS Based Load Balancers Paul Vixie (Jul 03)
- RE: DNS Based Load Balancers David Temkin (Jul 03)
- RE: DNS Based Load Balancers David Temkin (Jul 02)
- Re: DNS Based Load Balancers Matt Ghali (Jul 01)
- RE: DNS Based Load Balancers Christopher L. Morrow (Jul 02)
- Re: DNS Based Load Balancers Matt Ghali (Jul 03)
- RE: DNS Based Load Balancers Sam Stickland (Jul 04)
- Re: DNS Based Load Balancers Rodrick Brown (Jul 04)