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. 02, 2010
Filed:
Feb. 24, 2006
Wei Chen, Beijing, CN;
Xuezheng Liu, Beijing, CN;
Wei Chen, Beijing, CN;
Xuezheng Liu, Beijing, CN;
Microsoft Corporation, Redmond, WA (US);
Abstract
A structured peer-to-peer overlay performs a key-based routing (KBR) that achieves a strong routing consistency guarantee as well as reasonable scalability. The key space of the structured overlay is partitioned into zones, each separately managed by a group membership service that provides total ordering of membership query and change actions. The strongly consistent KBR has two phases: first, a key value is routed to a contact node in its zone via a weakly consistent KBR protocol; and then performing a lookup of the destination node for the key value by the contact node using the group membership service of the zone. By appropriately tuning the zone size, the strongly consistent KBR balances the trade-off between scalability and routing liveness. The KBR can maintain this balance by merging and splitting zones to account for system chum and scale changes.