Identifiers, identification schemes and data awareness

1. 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)

2. Outline • Overview of SG13 Q.21 activities on identifier/identification • Y.3031: Identification framework in FNs • Data-aware networking • Conclusion and Recommendations

3. 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 data-aware 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) Geneva, Switzerland, 11 June 2012 3

4. ITU-T Y.3031 overview (1/5) Scope analysis of existing identifiers identification framework in FNs, and high-level requirements Geneva, Switzerland, 11 June 2012 4

5. 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 [i] Service name to node name binding (2)Node (3) NAP (4) Path [ii] Node name to NAP binding [iii] NAP to path binding Figure I.1 – Four types of objects (service, node, NAP, and path) and three bindings in the Internet Geneva, Switzerland, 11 June 2012 5

6. 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

7. ITU-T Y.3031 overview (4/5) • Identification framework in FN • Various categories of IDs • Each category can have IDs of various scopes: e.g. local, global Geneva, Switzerland, 11 June 2012 7

8. 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 Geneva, Switzerland, 11 June 2012 8

9. 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 Geneva, Switzerland, 11 June 2012 9

10. 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. Geneva, Switzerland, 11 June 2012 10