{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8520680","patent":{"patent_number":"US-8520680","title":"Address learning in a layer two bridging network","assignee":null,"inventors":[],"filing_date":"2010-04-30T00:00:00.000Z","publication_date":"2013-08-27T00:00:00.000Z","cpc_codes":["H04L","H04L"],"num_claims":19,"abstract":"A network system includes a provider backbone bridged network (PBBN) and a multi-homed provider bridge network (PBN) having an L2 switch that operate as backboned edge bridge (BEBs) to bridge L2 packets between the PBN and the PBBN. The L2 switch executes a PBBN routing instance and a separate PBN routing instance. A plurality of packet-forwarding engine (PFE) of the L2 switch are configured to forward L2 packets between interfaces of the PBN routing instance and the PBBN routing instance. The PFEs store L2 network address tables that specify L2 network addresses reachable by the interfaces. The PFEs of the L2 switch are configured to selectively share L2 network addresses between the L2 network address tables of the PBN routing instance and the L2 network address tables of the PBBN routing instance."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Address learning in a layer two bridging network","description":"A network system includes a provider backbone bridged network (PBBN) and a multi-homed provider bridge network (PBN) having an L2 switch that operate as backboned edge bridge (BEBs) to bridge L2 packe","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8520680","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-8520680","citation_suggestion":"Patentable. \"Address learning in a layer two bridging network\" (US-8520680). https://patentable.app/patents/US-8520680","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8520680","json":"https://patentable.app/api/llm-context/US-8520680","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:16:12.196Z"}