Netskope. has filed a patent for distributed routing and load balancing in a dynamic service chain. The method involves receiving a packet with a NSH, processing it at the first service instance, accessing a flow table using a stream affinity code, and routing the packet to the selected second service instance. GlobalData’s report on Netskope gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Netskope, Quantum key distribution was a key innovation area identified from patents. Netskope's grant share as of January 2024 was 59%. Grant share is based on the ratio of number of grants to total number of patents.
Distributed routing and load balancing in dynamic service chain
The patent application (Publication Number: US20240039976A9) describes a method for distributed routing and load balancing in a dynamic service chain. The method involves receiving a packet at a first service instance with a network service header (NSH) imposed by a service classifier, processing the packet at the first service instance, accessing a flow table using a stream affinity code to select a second service instance, and routing the packet to the selected second service instance. The NSH can be implemented as a user datagram protocol (UDP) header, and hashing the stream affinity code is used to access the flow table.
Furthermore, the patent application details the implementation of the method on tangible non-transitory computer-readable storage media and a system with a processor and memory. The method includes scenarios where the flow table lacks an entry for the second service, requiring access to a consistent hash table (CHT) to select an available instance using a six-tuple hash. The NSH header includes a client ID, and instances of services can run in containers hosted in pods or on virtual machines, bare metal servers, or custom hardware. The system also allows for selecting alternate service instances from the CHT and updating the flow table accordingly, enhancing the efficiency of distributed routing and load balancing in dynamic service chains.
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