Requirements for GMPLS-based multi-region and multi-layer networks (MRN/MLN)

Document Type Expired Internet-Draft (individual)
Author Kohei Shiomoto 
Last updated 2005-10-28
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Most of the initial efforts on Generalized MPLS (GMPLS) have been related to environments hosting devices with a single switching capability. The complexity raised by the control of such data planes is similar to that seen in classical IP/MPLS networks. By extending MPLS to support multiple switching technologies, GMPLS provides a comprehensive framework for the control of a multi- layered network of either a single switching technology or multiple switching technologies. In GMPLS, a switching technology domain defines a region, and a network of multiple switching types is referenced in this document as a multi-region network (MRN). When referring in general to a layered network, which may consist of either a single or multiple regions, this document uses the term, Multi-layer Network (MLN). This draft defines a framework for GMPLS based multi-region/multi-layer networks and lists a set of functional requirements.


Kohei Shiomoto (

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