I-D ACTION:draft-ghani-optical-rings-01.txt

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	Title		: Architectural Framework for Automatic Protection 
                          Provisioning In Dynamic Optical Rings
	Author(s)	: N. Ghani et al.
	Filename	: draft-ghani-optical-rings-01.txt
	Pages		: 41
	Date		: 07-Mar-01
	
Given the large installed base of ring fiber-plants and the extensive 
experience operators have gained in operating SONET (SDH) ring networks, 
optical rings are becoming increasingly important.  As such, optical 
rings will play a crucial role in the migration from existing TDM-based 
SONET (SDH) architectures to more dynamic lightpath provisioning 
paradigms.  To date, various optical ring concepts have been tabled, 
proposing multi-services support and mirroring the fast protection 
switching capabilities of existing SONET (SDH) rings.  Nevertheless, 
the emerging IP-based MPL(ambda)S framework for optical networks is 
largely based upon (optical) mesh routing concepts.

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