Effective indexing of protocol information

US10164818B2 · kind B2 · utility

Assignee

• International Business Machines Corporation · US

Inventors

• Hubertus Franke · Somers, US
• Douglas M. Freimuth · New York, US
• David P. Olshefski · New York, US
• John M. Tracey · Scarsdale, US
• Dinesh C. Verma · Fryeburg, US
• Charles P. Wright · Somers, US

Key dates

• Filing date: Oct 5, 2016
• Grant date: Dec 25, 2018
• Expiry date: Nov 2, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L41/5096
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

A downstream element in a pipeline processing a network flow receives a first request and executes an indexing function to compute an index into a control block for storing state information associated with the data packet. The downstream element transmits a request to an upstream element to include the index as a tag in one or more subsequent data packets that comprises the plurality of network fields and the associated values. Subsequent data packet may be received at the downstream element with the tag having the index information. The downstream element may process the subsequent data packet based on the tag without having to execute the indexing function on the subsequent data packet.