One of the
most important ITU-T Recommendations emerging from the SG 13 meeting
specifies the high level requirements and associated capabilities for NGN.
Defining requirements is a fundamental and essential part of the standards
making process. The document outlines the basic foundations necessary for NGN
work to progress and, in particular, for supporting the service objectives of
NGN Release 1.
example: “The NGN transport stratum [Y.2012] shall use the IP protocol for
general, ubiquitous, and global public connectivity. The IP protocol may be
carried over various underlying transport technologies in the access and core
portions of the transport stratum (eg. xDSL, ATM, MPLS, Frame Relay, OTN)
according to the operator’s environment.”
with the general goals and objectives captured in the ITU’s definition of NGN
published in Recommendation Y.2001 the proposed Recommendation (Y.2201), as
well as other documents finalized in July, is an updated version of an output
from the Focus Group on NGN (FG-NGN), November 2005.
say that it is important to note that NGN standards authors will have used the
requirements text agreed in November 2004 as a basis for their work.
Publication as an ITU-T Recommendation will give legal (normative) status and
has enabled some general refinement as well as updating particularly in the
area of regulatory requirements.