{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10541921","patent":{"patent_number":"US-10541921","title":"Supporting access control list rules that apply to TCP segments belonging to ‘established’ connection","assignee":null,"inventors":[],"filing_date":"2017-11-21T00:00:00.000Z","publication_date":"2020-01-21T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L"],"num_claims":20,"abstract":"Embodiments provide a TCAM-based access control list that supports disjunction operations in rules. A network frame is received. Embodiments determine set TCP flags of the network frame. Upon determining that the set TCP flags match a first entry in a numeric range table, bits of a search key corresponding to the first entry are updated. The search key accesses a second entry stored in a TCAM. The first entry further comprises an encode field to scan a TCP header of the network frame for set TCP flags, a first mask field to a condition corresponding to unset TCP flags to identify in the network frame, a second mask field to a condition corresponding to set TCP flags to identify in the network frame, and an operation field specifying a disjunction operation for comparing the set TCP flags with the first mask field and the second mask field."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Supporting access control list rules that apply to TCP segments belonging to ‘established’ connection","description":"Embodiments provide a TCAM-based access control list that supports disjunction operations in rules. A network frame is received. Embodiments determine set TCP flags of the network frame. Upon determin","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10541921","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-10541921","citation_suggestion":"Patentable. \"Supporting access control list rules that apply to TCP segments belonging to ‘established’ connection\" (US-10541921). https://patentable.app/patents/US-10541921","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10541921","json":"https://patentable.app/api/llm-context/US-10541921","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:03:30.981Z"}