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In this paper, we propose a distributed approach for the least constraining slot allocation scheme in all-optical TDM networks (LC) that was introduced in a previous work. The driving force behind our proposal is the employment of the LC scheme in a GMPLS context. After describing the basic data model and messaging parameters, we focus on defining an efficient LC resource status update scheme, which is essential to achieve compatibility with GMPLS' periodic link state update standards. Basically, we reduce the rate of resource status updates from once per call to once per few calls, and measure the impact on network performance.