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:
Aug. 24, 2010
Filed:
Jan. 27, 2005
Sunil K. Srivastava, Fremont, CA (US);
Sunil K. Srivastava, Fremont, CA (US);
Cisco Technology, Inc., San Jose, CA (US);
Abstract
A method of routing data to a load-balanced server through a network having one or more load-balancing nodes is disclosed, comprising receiving a label value; storing the label value in a load balancing mapping at a load-balancing node in a network, wherein the load balancing mapping associates the label with a packet flow and with interface identifying information; and forwarding subsequent packets of the flow to a selected load-balancing server. The forwarding route is defined by the load-balancing mapping and without hop-by-hop routing decisions. The first server response packet is switched hop-by-hop and the label is stored at each node traversed by the response packets, with a flow identifier and interface identifiers. For other request and response packets, nodes fast-switch the packets based on the label mappings; thus, packet flows are rapidly routed from the client to the same server without time-consuming hop-by-hop routing or repeated load-balancing decisions.