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:
Mar. 18, 2003
Filed:
Jan. 10, 2000
Skef F. Iterum, San Francisco, CA (US);
Ying Xie, San Jose, CA (US);
Madhusudhan K. Talluri, Fremont, CA (US);
Sun Microsystems, Inc., Santa Clara, CA (US);
Abstract
One embodiment of the present invention provides a system that facilitates communications between a cluster of nodes within a clustered computing system in a manner that tolerates failures of communication pathways between the nodes. The system operates by configuring a distinct logical pathway between each possible source node and each possible destination node in the cluster, so that each distinct logical pathway is routed across one of at least two disjoint physical pathways between each possible source node and each possible destination node. In doing so, the system configures a first logical pathway between a first node and a second node across a first physical pathway of at least two disjoint physical pathways between the first node and the second node. Upon detecting a failure of the first physical pathway, the system reroutes the first logical pathway across a second physical pathway from the at least two disjoint physical pathways between the first node and the second node. In one embodiment of the present invention, the system associates a distinct per-node logical address with each node in the cluster. For each source node, the system associates the per-node logical address of each possible destination node with a corresponding logical pathway to the destination node. In this way, a communication from a given source node to a per-node logical address of a given destination node is directed across the corresponding logical pathway to the given destination node.