{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8503396","patent":{"patent_number":"US-8503396","title":"Network apparatus enabling roaming across subnets","assignee":null,"inventors":[],"filing_date":"2011-08-04T00:00:00.000Z","publication_date":"2013-08-06T00:00:00.000Z","cpc_codes":["H04W","H04L","H04W","H04W","H04W"],"num_claims":20,"abstract":"To enable a network apparatus to detect L3 roaming users and to take appropriate forwarding actions, L3 knowledge is introduced inside an L2 bridge forwarding table in the network apparatus. As a client moves from a subnet associated with a first network element to a subnet associated with the network apparatus, a determination is made regarding whether the client is roaming by evaluating a source IP address within a L3 packet header within a first frame received at the network apparatus. If, as a result of the evaluating step, it is determined that the client is roaming, the L2 bridge forwarding table is configured to include a source MAC address of the client together with information identifying a destination interface for use in directing client data traffic back towards the subnet associated with the first network element."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Network apparatus enabling roaming across subnets","description":"To enable a network apparatus to detect L3 roaming users and to take appropriate forwarding actions, L3 knowledge is introduced inside an L2 bridge forwarding table in the network apparatus. As a clie","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8503396","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-8503396","citation_suggestion":"Patentable. \"Network apparatus enabling roaming across subnets\" (US-8503396). https://patentable.app/patents/US-8503396","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8503396","json":"https://patentable.app/api/llm-context/US-8503396","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:16:09.972Z"}