{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9667555","patent":{"patent_number":"US-9667555","title":"Quality of service in packet networks","assignee":null,"inventors":[],"filing_date":"2015-02-25T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L"],"num_claims":17,"abstract":"Methods and systems for providing quality of service over IP networks are disclosed. In one aspect, a flow label field of a header may be divided into first and second portions. The first portion defines a quality of service. The second portion identifies a message flow. Once the first portion defining the quality of service is established by the sending node, no nodes in the transmission path may change the quality of service value. Each node may route packets based on the quality of service field, or may modify the traffic class field of the header based on the quality of service and then route the packet based on the traffic class field. The QoS field can be used to complement a DSCP/traffic class field and provide a better mechanism for end-to-end QoS using IPv6. A service provider can use DSCP within its own administrative domain(s), and end users can set and maintain QoS using the methods described herein, thereby providing a framework for end-to-end QoS using IP packets."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Quality of service in packet networks","description":"Methods and systems for providing quality of service over IP networks are disclosed. In one aspect, a flow label field of a header may be divided into first and second portions. The first portion defi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9667555","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9667555","citation_suggestion":"Patentable. \"Quality of service in packet networks\" (US-9667555). https://patentable.app/patents/US-9667555","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9667555","json":"https://patentable.app/api/llm-context/US-9667555","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:23:50.900Z"}