Canonical name (CNAME) handling for global server load balancing

  • US 7,574,508 B1
  • Filed: 08/07/2002
  • Issued: 08/11/2009
  • Est. Priority Date: 08/07/2002
  • Status: Active Grant
First Claim
Patent Images

1. A method of providing load balancing in a network, the method comprising:

  • receiving, by a load balance switch, a domain name system (DNS) reply to a DNS query to resolve a name into a network address;

    checking, by said load balance switch, the received DNS reply for an alias associated with a canonical name (CNAME) record; and

    if the alias associated with the CNAME record is detected in said received DNS reply by said checking and if a host name that is mapped to by the alias is configured for load balancing, applying by said load balance switch a load balancing algorithm to a list of network addresses provided by the received DNS reply.

View all claims

    Thank you for your feedback