Patent ID: 8243589

Claim:
An autonomous intranet system, comprising: a first data center including: a number of servers; and a first load balancer that receives health check information from the number of servers; a second data center including: a number of counterpart servers to the number of servers for the first data center; and a second load balancer; wherein the first load balancer advertises a single-host Internet Protocol (IP) address upstream and directly from the first load balancer to the second load balancer via a direct communication link based on received health check information from the number of servers, wherein the first load balancer ceases to advertise the single-host IP address for the first data center when results, received from the number of servers at the first load balancer, of a first health check fail to meet certain criteria; wherein the second load balancer advertises the single-host IP address upstream for the second data center when the second load balancer ceases to receive the advertised single-host IP address directly from the first load balancer via the direct communication link; wherein, in response to an initiated failover, traffic from an active client is permitted to complete a route to the first data center and traffic from a new client subsequent to the initiated failover is routed to the second data center; and wherein traffic from a client is routed to the second data center transparently to the client without refreshing domain name system (DNS) records because the single-host IP address is the same for both the first and the second data centers.