DNS Racing -Multi ISP load balancing with failover using DNS.

[Mark Andrews]

And if people used happy-eyeballs[1] or similar[2] in the applications
this would not be needed.  Chrome already does this with their
latest browser.  It uses a 300ms timer to switch to the next address.

Happy-eyeballs was primarially written to deal with broken 6to4
links but the techniques are applicable to any multi-homed service
be it IPv4 only, IPv6 only or a mixture of IPv4 and IPv6.

Mark

[1] http://tools.ietf.org/html/draft-wing-v6ops-happy-eyeballs-ipv6-01
[2] https://www.isc.org/community/blog/201101/how-to-connect-to-a-multi-homed-server-over-tcp

In message <4DE2C00B.6090607 at isc.org>, Alan Clegg writes:
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> On 5/29/2011 5:12 PM, Maren S. Leizaola wrote:
> 
> > IT is a poor man=92s replacement for BGP multihoming and IP anycast.
> 
> > Hey it is Free and you can implement it using BIND.
> 
> And you've just broken DNSSEC.
> 
> AlanC
> 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org