{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9781030","patent":{"patent_number":"US-9781030","title":"Fast re-route protection using GRE over MPLS","assignee":null,"inventors":[],"filing_date":"2015-03-31T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L","H04L"],"num_claims":15,"abstract":"Techniques are described for providing fast re-route (FRR) node and/or link protection along a primary label switched path (LSP) using generic routing encapsulation (GRE) over multi-protocol label switching (MPLS). An ingress edge router of a primary LSP is configured to encapsulate incoming packets into GRE with a destination address of an egress edge router of the primary LSP, and push a primary label onto the encapsulated packet for forwarding along the primary LSP. Upon a failover to a bypass LSP, a point of local repair (PLR) router swaps the primary label on the encapsulated packet with a bypass label. A merge point (MP) router then receives the encapsulated packet via the bypass LSP, and performs a lookup using the destination address of the egress edge router included on the encapsulated packet in order to determine a primary label for forwarding the encapsulated packet along the primary LSP."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Fast re-route protection using GRE over MPLS","description":"Techniques are described for providing fast re-route (FRR) node and/or link protection along a primary label switched path (LSP) using generic routing encapsulation (GRE) over multi-protocol label swi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9781030","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-9781030","citation_suggestion":"Patentable. \"Fast re-route protection using GRE over MPLS\" (US-9781030). https://patentable.app/patents/US-9781030","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9781030","json":"https://patentable.app/api/llm-context/US-9781030","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:49:55.100Z"}