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Label Set Object and Bidirectional Lightpath (Prop) Using LSP_ATTRIBUTES Object To trigger the new functionality at each GMPLS node LSP_ATTRIBUTES object and related mechanism meet the requirement of new control functionalities [RFC4420] One bit in Attributes Flags TLV indicates the new type lightpath Small block extensions to signaling in procedure for Label set update ONLY Upstream-and-Downstream common free wavelengths information updating at each node and carried by Label set Upstream-and-Downstream OXC Joint configurations |