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. 28, 2016
Filed:
Sep. 30, 2013
Juniper Networks, Inc., Sunnyvale, CA (US);
Gopi Krishna, Tracy, CA (US);
Suresh Kumar Vinapamula Venkata, Sunnyvale, CA (US);
Shauli Gal, Mountain View, CA (US);
Li Fang, San Jose, CA (US);
Harsha Srinath, Fremont, CA (US);
Sanjay Agrawal, San Ramon, CA (US);
Jwala Dinesh Gupta Chakka, Sunnyvale, CA (US);
Juniper Networks, Inc., Sunnyvale, CA (US);
Abstract
In general, techniques are described for load balancing, with a service node, packet flows using stateless load balancing that adapts to server failure to provide flow affinity to initially selected servers for the duration of respective flows. In one example, service node device applies stateless load balancing to packet flows to distribute the flows among a plurality of servers. The service node determines a failure of a failed server and then receives an initial packet of a packet flow from the packet flows and forwards the initial packet to an active server. The service node generates a mapping of the packet flow to the active server, determines a recovery of the failed server, receives a subsequent packet of the packet flow, and forwards the subsequent packet of the packet flow to the active server based at least on the mapping of the packet flow to the active server.