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Generalized Label for Super-Channel Assignment on Flexible Grid

Document type: Expired Internet-Draft (individual)
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Last updated: 2014-04-11 (latest revision 2013-10-08)
Intended RFC status: Unknown
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IESG State: Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


To enable scaling of existing transport systems to ultra high data rates of 1 Tbps and beyond, next generation systems providing super- channel switching capability are currently being developed. To allow efficient allocation of optical spectral bandwidth for such high bit rate systems, International Telecommunication Union Telecommunication Standardization Sector (ITU-T) is extending the G.694.1 grid standard (termed "Fixed-Grid") to include flexible grid (termed "Flex-Grid") support (draft revised ITU-T G.694.1, revision 1.4, Oct 2011). This necessitates definition of new label format for the Flex-Grid. This document defines a super-channel label as a Super-Channel Identifier and an associated list of 12.5 GHz slices representing the optical spectrum of the super-channel. The label information can be encoded using a fixed length or variable length format. This label format can be used in GMPLS signaling and routing protocol to establish super-channel based optical label switched paths (LSPs).


Iftekhar Hussain <>
Zhong Pan <>
Marco Sosa <>
Andy Malis <>
Abinder Dhillon <>

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid)