1. Naming & Addressing ENUM, EPC, WINC overview JaeYoung Choi (jychoi@mmlab.snu.ac.kr)

2. MMLAB JaeYoung Choi 2 Content  Introduction  ENUM  EPC  WINC  Comparison between ENUM, EPC, and WINC

3. MMLAB JaeYoung Choi 3 Introduction  Name vs Address  name : sequences of characters or signs representing end-user for identification of services and resources of a service  address : sequences of numbers or signs to identify a network terminal  Resolution  process of translating from a name to an address  Example  Many numbers of IP addresses are mapped to one name www.google.co.kr by using DNS in Internet www.google.co.kr  Name : www.google.co.krwww.google.co.kr  Address : 66.249.89.99…  Resolution : DNS

4. MMLAB JaeYoung Choi 4 Introduction (cont’d)  Demands on a new addressing or naming  Convergence of existing networks  convergence of broadcasting and telecommunications  Needs for ubiquitous network  Home Network, Sensor Network…

5. MMLAB JaeYoung Choi 5 tElephone NUmber Mapping (ENUM)  Protocol to identify ordinary phones, fax machines, pagers, email clients, etc, by one E.164 number INTERNET Telephone Network ENUM DNS ENUM No. Email / SIP / URL Telephone No. Mobile No. Fax No.

6. MMLAB JaeYoung Choi 6 ENUM – using DNS e164.arpa 2.8.e164.arpa 0.0.5.4.6.8.1.2.2.2.8. e164.arpa->y1.com *.1.5.2.8. e164.arpa 0.0.5.4.6.8.1.2.2.2.8. e164.arpa->NAPTRs (ldap://ldap.z1.com) x.x.x.1. e164.arpa y.y.y.1. e164.arpa Domestic Tier 1 Registry Tier 2 Registrar $ORIGIN 0.0.5.4.6.8.1.2.2.2.8.e164.arpa. IN NAPTR 10 10 “u” “sip+E2U” “!^.*$sip:user@nic.or.kr!” IN NAPTR 102 10 “u” “mailto+E2U” !^.*$mailto:user@nic.or.kr!” IN NAPTR 102 10 “u” “tel+E2U” “!^.*$tel:+82221864500!” $ORIGIN 6.8.1.2.2.2.8.e164.arpa 0.0.5.4 IN NS e164.nic.or.kr Foreign Tier 0 ENUM ROOT (ITU) … …

7. MMLAB JaeYoung Choi 7 Electronic Product Code (EPC)  EPC  Globally unique serial number that identifies an “individual” object  EPC is the next generation of product identification (Barcode)  Serial Number field is added to identify an individual object unlike Barcode  can be used to enhance the supply chain 01.203D2A.916E8B.8719BAE03C EPC Version Manufacture ID Product ID Serial Number

8. MMLAB JaeYoung Choi 8 EPC Network  provide information of individual product by using EPC read by reader  EPC Information Service (EPCIS)  maintain and provide the information of specific product  hosts and/or facilitates access to serialized product information generated by RFID  EPC Discovery Services  Authoritative registry of every EPCIS that has information about a particular product  enable track & trace capabilities by the EPC value  Object Naming Service (ONS)  centralized, authoritative directory that routes requests for information about a particular EPC

9. MMLAB JaeYoung Choi 9 Retailer EPC Network Manufacturer 1. EPC lifecycle begins when a Manufacturer tags the product 2. Manufacturer records product information (e.g., manufacture date, expiration date, location) into EPC Information Service 3. EPC Information Service registers EPC “knowledge” with EPC Registry 1 2 3 Retailer EPC Network Manufacturer 4. Manufacturer sends product to Retailer 5. Retailer records “receipt” of product into EPC IS 6. Retailer’s EPC IS then registers product “knowledge” with EPC Discovery Service 4 5 6 Retailer EPC Network Manufacturer 7. If Retailer requires product information, Root ONS is queried for location of Manufacturer’s Local ONS 7 8 8. Manufacturer’s Local ONS is queried for location of EPC-IS Retailer Application Retailer EPC Network Manufacturer 9. Retailer queries Manufacturer EPC IS for desired product information (e.g., manufacture date, expiration date, etc.) 9 Retailer Application Operation Example of EPC network Retailer EPC Network Manufacturer 1. EPC lifecycle begins when a Manufacturer tags the product 1

10. MMLAB JaeYoung Choi 10 WINC  Identification protocol to connect IP network by using characters or digits instead of URL  developed and maintained by NIDA  domestic standard  keypad number mapped the domain name of URL of mobile phone + “#” + separate number  separate number : 5 digit numbers to avoid duplication  ex) Number of WINC to connect URL “nida.co.kr” = 6432#0

11. MMLAB JaeYoung Choi 11 Comparison between ENUM, EPC, WINC  Service Target  ENUM : human-centric  EPC : product-centric (cf : URN – digital contents)  WINC : mobile devices that can connect to IP network (i.e. cellular phone)  Resolution Service for Addressing  ENUM : uses an existing DNS (e164.arpa)  EPC : ONS & EPC discovery service  WINC : WINC DB (uses an extra database)

12. MMLAB JaeYoung Choi 12 References  ENUM  RFC3761 (http://www.ietf.org/rfc/rfc3761.txt)http://www.ietf.org/rfc/rfc3761.txt)  http://www.ietf.org/html.charters/enum-charter.html http://www.ietf.org/html.charters/enum-charter.html  http://www.enum.or.kr/kr/index.jsp http://www.enum.or.kr/kr/index.jsp  EPC  http://www.epcglobalinc.com/ http://www.epcglobalinc.com/  http://www.epcglobalinc.com/standards_technology/Final- epcglobal-arch-20050701.pdf http://www.epcglobalinc.com/standards_technology/Final- epcglobal-arch-20050701.pdf  WINC  http://www.winc.or.kr/ http://www.winc.or.kr/