{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10498638","patent":{"patent_number":"US-10498638","title":"Performing a multi-stage lookup to classify packets","assignee":null,"inventors":[],"filing_date":"2017-05-01T00:00:00.000Z","publication_date":"2019-12-03T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L"],"num_claims":22,"abstract":"Some embodiments provide a method for a forwarding element that forwards packets. The method receives a packet. The method performs a first stage lookup of a hash table for a first hash of a first set of header fields and un-wildcards bits of a wildcard mask that corresponds to the first set of header fields. If a matching hash is found in the first stage lookup, the method performs a second stage lookup of the hash table for a second hash of a second set of header fields and un-wildcards bits of the wildcard mask that corresponds to the second set of header fields. The method identifies a matching rule for the packet. The method generates a flow based on the matching rule and the wildcard mask, wherein the flow is used to process each other packets that match each bit which is un-wildcarded."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Performing a multi-stage lookup to classify packets","description":"Some embodiments provide a method for a forwarding element that forwards packets. The method receives a packet. The method performs a first stage lookup of a hash table for a first hash of a first set","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10498638","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-10498638","citation_suggestion":"Patentable. \"Performing a multi-stage lookup to classify packets\" (US-10498638). https://patentable.app/patents/US-10498638","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10498638","json":"https://patentable.app/api/llm-context/US-10498638","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T09:58:57.134Z"}