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:
Apr. 20, 2021
Filed:
Mar. 02, 2020
Netskope, Inc., Santa Clara, CA (US);
Ravi Ithal, Los Altos, CA (US);
Umesh Bangalore Muniyappa, Bangalore, IN;
Netskope, Inc., Santa Clara, CA (US);
Abstract
The disclosed technology teaches distributed routing and load balancing in a dynamic service chain: receiving and processing a packet, with added header including stream affinity code, at a first service instance and based on processing determining a second service, among available services, that should next handle the packet. The technology teaches accessing a flow table using the stream affinity code in the header to select a service instance performing the second service in the service chain, and routing the packet to the second service instance upon egress from the first service instance. When the flow table lacks an entry for the second service corresponding to the stream affinity code, the disclosed technology teaches accessing a consistent hash table of service instances performing the second service, selecting an available instance, and updating the flow table to specify the second service instance as providing the second service for packets sharing the header.