The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 12, 2007
Filed:
Dec. 12, 2002
Jean-marc Berthaud, Villeneuve Loubet, FR;
Pascal Chauffour, Cagnes sur Mer, FR;
Jean-claude Dispensa, Saint Jeannet, FR;
Valerie Mahe, Nice, FR;
Jean-Marc Berthaud, Villeneuve Loubet, FR;
Pascal Chauffour, Cagnes sur Mer, FR;
Jean-Claude Dispensa, Saint Jeannet, FR;
Valerie Mahe, Nice, FR;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method of preserving symmetrical routing in a communication system comprising a server farm connected to the Internet by an Internet access router IAR. The server farm includes at least two customer cabinets each having a WEB server, and at least two firewalls. The firewalls use Virtual Router Redundancy Protocol (VRRP) to set up a primary firewall that supports communication between a customer server and an Internet user. The IAR selects the firewall to be used as being the firewall corresponding to the interface having the lowest weight in a routing table. The cost assigned to each interface associated with a firewall is automatically generated, at the initial time, according to the priority assigned by the VRRP protocol to said interface associated with said firewall.