Patent ID: 7574499
Filing Date: 2009-08-11
Classification: G06F,H04L

Abstract:
1. A computer-implemented method for resolving a domain name resolution request, comprising: assigning a first IP address to each of a plurality of domain name servers distributed across a plurality of point of presences; assigning a second IP address to a first subset of said plurality of domain name servers, wherein said second IP address is different than said first IP address; assigning a third IP address to a second subset of said plurality of domain name servers, wherein said third IP address is different than said first and second IP addresses; wherein said first subset is different than said second subset; receiving said domain name resolution request on a domain name server in said first subset of said plurality of domain name servers using said second IP address when said domain name resolution request sent to said first IP address times out; receiving said domain name resolution request on a domain name server in said second subset of said plurality of domain name servers using said third IP address when said domain name resolution request sent to said second IP address times out.