In message <10BE7B64-46FF-46D8-A428-268897413EB4@hopcount.ca>, Joe Abley writes :
On 2010-02-14, at 17:17, Mark Andrews wrote:
I don't care what internal routing tricks are used, they are still under the *one* external route and as such subject to single points of failure and as such don't have enough independence.
Are you asserting architectural control over what Level3 decide to do = with their own servers, Mark? :-)
No. The reason for multiple nameservers is to remove single points of failures. Using three consecutive addresses doesn't remove single points of failure in the routing system.
If their goal is distribute a service for the benefit of their own = customers, then keeping all anycast nodes associated with that service = on-net seems entirely sensible.
Which only helps if *all* customers of those servers are also on net.
Joe -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org