Joint ITU-T SG 13 and ISO/JTC1/SC 6
Workshop on
“Future Networks Standardization”
(Geneva, Switzerland, 11 June 2012)
Identifiers, identification schemes and
data awareness
Ved P. Kafle
Senior Researcher
National Institute of Information
and Communications Technology
(NICT)
Geneva, Switzerland, 11 June 2012
Outline
Overview of SG13 Q.21 activities on
identifier/identification
Y.3031: Identification framework in FNs
Data-aware networking
Conclusion and Recommendations
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Consideration of identifiers in FNs
Y.3001 recommends FNs to provide a new identification
framework for intrinsic mobility support and optimal data
access.
Mobility support requires ID/locator split (ITU-T Y.2015,
Y.2022, Y.2057)
Optimal data access requires information-centric or dataaware networking
Therefore, FNs need to specify identifiers and identification
schemes supporting ID/locator split and data-aware
networking.
Accordingly ITU-T SG13 has developed Y.3031 to specify an
identification framework (approved in 2012 May)
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ITU-T Y.3031 overview (1/5)
Scope
analysis of existing identifiers
identification framework in FNs, and
high-level requirements
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ITU-T Y.3031 overview (2/5)
Analysis of existing identifiers
IDs used in the Internet, NGN, and 3GPP
networks are overviewed and need of new
identifiers is emphasized.
Internet: domain names and IP addresses
User
(client
)
(1) Service
(4) Path
(3) NAP
[iii] NAP to
path binding
(2)Node
[i] Service name to
node name binding
[ii] Node name to
NAP binding
Figure I.1 – Four types of objects (service, node, NAP, and path) and three bindings in the Internet
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ITU-T Y.3031 overview (3/5)
NGN: Y.2011 shows relationship between user,
device and location
3GPP: MSISDN, IMSI, IMEI
used mostly for control; IP addresses for data
forwarding
FN related projects: NSF Future Internet
Architecture, 4WARD, AKARI, MOFI
emphasis on use of new IDs for hosts and contents
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ITU-T Y.3031 overview (4/5)
Identification framework in FN
Future Networks Communication Objects
Device
s
Services
…
User
Data
Identification Framework
ID Discovery Service
ID Spaces
…
Location ID
User ID
Service ID
Node ID
Data ID
IDs Mapping Registries
ID Mapping Service
Location-based
forwarding Networks
Various Networks
(IP, non-IP)
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ID-based
forwarding Networks
Various categories of IDs
Each category can have
IDs of various scopes:
e.g. local, global
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ITU-T Y.3031 overview (5/5)
High-level requirements for identifiers
unique in given scope
unambiguous for the given category
some persistent IDs and some temporary IDs
recommended to have ID structure helpful for
mapping between IDs of different categories
both static and dynamic mapping should be
possible between IDs of different categories
flexible structure for future enhancement
security friendly structure
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Data-aware networking
DAN is a hot topic in both research and
standardization for “optimizing network resource
by avoiding duplicate data traversing the same
link many times”.
Y.FNDAN (DAN components, challenges, etc.)
Identification (or naming) is one of three pillars
(e.g., naming, caching, name-based routing) of
DAN
Identification scheme would have significant
impact on other aspects of DAN as well
e.g., data discovery and routing
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Conclusion and Recommendations
Y.3031 specifies only the identification
framework and high-level requirements of
identifiers to be used in FN. It does not
recommend for any specific ID structures or
IDs configuration or mapping mechanisms.
New drafts would propose new IDs and
identification scheme in future
e.g., node ID structure and configuration method
in Y.FNid-config
The data identification issue should be taken
into consideration from the very beginning
of DAN activities in ITU.
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