{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621453","patent":{"patent_number":"US-9621453","title":"Path discovery in multipath networks","assignee":null,"inventors":[],"filing_date":"2013-08-29T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L"],"num_claims":18,"abstract":"Exemplary embodiments identify all viable paths in an ECMP/WCMP enabled network without running traceroute multiple times. Devices in a network may be configured to send a packet including a pre-determined option to an Software-Defined Network Controller (SDNC) upon receipt. If a destination of the packet is within the SDNC-controlled domain, SDNC identifies all viable ECMP/WCMP paths using routing information of the network. If the destination of the packet is outside the SDNC-controlled domain, SDNC identifies at least one egress switch of the SDNC-controlled domain. SDNC may identify internal paths connecting the source of the packet to the at least one egress switch. SDNC may also identify external paths connecting the at least one egress switch to the destination of the packet. SDNC may construct the viable ECMP/WCMP paths by connecting the internal paths to the external paths."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Path discovery in multipath networks","description":"Exemplary embodiments identify all viable paths in an ECMP/WCMP enabled network without running traceroute multiple times. Devices in a network may be configured to send a packet including a pre-deter","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621453","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-9621453","citation_suggestion":"Patentable. \"Path discovery in multipath networks\" (US-9621453). https://patentable.app/patents/US-9621453","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621453","json":"https://patentable.app/api/llm-context/US-9621453","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T17:28:09.110Z"}