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:
Jan. 08, 2013
Filed:
Jun. 14, 2006
Amit Finkelstein, Haifa, IL;
Avihai Lifschitz, Bellevue, WA (US);
Yosef Dinerstein, Haifa, IL;
Ziv Caspi, Tel Aviv, IL;
Amit Finkelstein, Haifa, IL;
Avihai Lifschitz, Bellevue, WA (US);
Yosef Dinerstein, Haifa, IL;
Ziv Caspi, Tel Aviv, IL;
Microsoft Corporation, Redmond, WA (US);
Abstract
A generic master-slave mechanism enables a single processor of a cluster of firewall processors to define the behavior of the other processors in the cluster for a specific logical connection. The cluster of firewall processors utilizes virtual adapters representing physical adapters on other processors in the firewall cluster. This virtualization allows each cluster member to act as though it is a standalone machine that owns all local IP addresses of the entire cluster. When traffic is received by a firewall processor, the firewall processor determines if there is a master associated with the logical connection for the traffic. If so, the traffic is routed to the master. If no master is associated, in an example configuration, the receiving firewall processor becomes the master. A message traffic logical connection has a single master. A master remains the master of a logical connection until the connection is terminated.