09-09-2006, 12:20 AM
Yeah it is all about load balancing. I actually used to own an ISP a very long time ago and managed all the servers. You simply have multiple servers so if one goes down lookups don't go away.
What you will also find in a lot of cases is people will roundrobin multiple servers behind those ips as well, so each NSx. designation will have multiple servers behind it. Especially for larger providers.
What you will also find in a lot of cases is people will roundrobin multiple servers behind those ips as well, so each NSx. designation will have multiple servers behind it. Especially for larger providers.