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Scenario 2b: Multiple LSP Combination To logically group several diversely routed and protected/restorable connections Applies “naturally” to virtually concatenation but not all restricted (connections independence at control plane) Not supported by GMPLS today => new application E.g. a VC-4-5v with 3 VC-4s on same component link and 2 diverse VC-4s All connections must be part of the single logical circuit Requires Circuit ID & LSP Sequence Number in GMPLS All connections having same Circuit ID belong to same circuit and LSP sequence number allows to sort these connections