CCAMP WG: draft-design-team-gmpls-recovery-terminology-00.txt

[Dimitri.Papadimitriou@alcatel.be]

Summary for Sub-IP Area
-----------------------

Name: draft-design-team-gmpls-recovery-terminology-00.txt

1. Summary

This document defines a common terminology for GMPLS based 
recovery mechanisms (i.e. protection and restoration) that 
are under consideration by the CCAMP Working Group. 

Related documents:

http://www.ietf.org/internet-drafts/draft-bala-protection-restoration-signaling-00.txt 
http://www.ietf.org/internet-drafts/draft-bala-restoration-signaling-01.txt 
http://www.ietf.org/internet-drafts/draft-ietf-ipo-carrier-requirements-00.txt  
http://www.ietf.org/internet-drafts/draft-ietf-tewg-restore-hierarchy-00.txt 
http://www.ietf.org/internet-drafts/draft-kini-restoration-shared-backup-01.txt 
http://www.ietf.org/internet-drafts/draft-li-shared-mesh-restoration-01.txt 
http://www.ietf.org/internet-drafts/draft-many-optical-restoration-01.txt 
http://www.ietf.org/internet-drafts/draft-suemura-protection-hierarchy-00.txt 
http://www.ietf.org/internet-drafts/draft-ylee-protection-occ-00.txt 

2. Where does it fit in the Picture of the Sub-IP Work

This work fits perfectly in the CCAMP box

3. Why is it Targeted at this WG

This draft is targeted at the CCAMP because GMPLS protection and
restoration of switched LSPs is within the scope of the CCAMP WG.

4. Justification 

Protection and restoration of switched LSPs under tight time 
constraints is a challenging problem. This is particularly 
relevant to optical networks that consist of TDM and/or (all-)
optical (photonic) cross-connects referred to as GMPLS nodes 
(or simply nodes) connected in a general network topology.
 
This document focuses on the terminology for the recovery (i.e. 
protection and restoration) of LSPs controlled by a GMPLS control 
plane. It focuses on end-to-end, segment and span (i.e. link) 
LSP recovery. 

The terminology proposed in this document is also intended to 
be independent of the underlying transport technologies; while
terminology for control plane recovery is not in the scope of 
this document.
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