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I-D ACTION:draft-bms-optical-sdhsonet-mpls-control-frmwrk-00.txt



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	Title		: Framework for MPLS-based Control of Optical SDH/SONET 
                          Networks
	Author(s)	: G. Bernstein, E. Mannie, V. Sharma
	Filename	: draft-bms-optical-sdhsonet-mpls-control-frmwrk-00.txt
	Pages		: 35
	Date		: 22-Nov-00
	
The suite of protocols that define Multi-Protocol Label Switching
(MPLS) is in the process of enhancement to generalize its
applicability to the control of non-packet based switching, that is,
optical switching.  One area of prime consideration is to use this
generalized MPLS in upgrading the control plane of optical transport
networks.  This paper illustrates this process by describing how
MPLS is being extended to control SONET/SDH networks.  SONET/SDH
networks are exemplary examples of this process since they possess a
rich multiplex structure, a variety of protection/restoration
options, are well defined, and are widely deployed. The extensions
to MPLS routing protocols to disseminate information needed in
transport path computation and network operations are discussed
along with the extensions to MPLS label distribution protocols
needed for provisioning of transport circuits. New capabilities that
an MPLS control plane would bring to SONET/SDH networks, such as new
restoration methods and multi-layer circuit establishment, are also
discussed.

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