Status on ENUM@CNNICXiaodong(Sheldon) Lee, CNNIC

2004-03-03, Seoul, IETF59

Contents

Background Integrated ENUM trial platform ENUM performance test Participation on the ENUM

activities China MII-ENUM Study Group Next steps

Background

Up to the end of 2003, about 80 million Internet users, more than 260 million mobile phone users and more than 255 million non-mobile phone users in china, VoIP is not very popular but very important for Chinese users

CNNIC is co-operated by Ministry of Information Industry of China, and Chinese Academy of Sciences

Background Cont’d Jul. 2001, CNNIC start the ENUM proj

ect and setup a simple ENUM trial system 3 months later

Feb. 2002, MII(Ministry of Information Industry, China) made decision on ENUM trial plan

Sep. 2002, 6.8.E164.arpa delegation by RIPE-NCC and ITU-TSB

Background Cont’d Oct. 2002, CNNIC run one of the slav

e servers of e164.arpa July, 2003, CNNIC upgrade the ENU

M trial system on both registration and resolution, and provide the free SIP registration for testing purpose for common users, opened for public test in Dec. 2003

Sep. 2003, CNNIC ENUM performance test

Integrated ENUM Trial Platform

ENUM resolution platform Tier 0---current e164.arpa Tier 1---6.8.E164.arpa

arpa-ns0.enum.net.cn;arpa-ns1.enum.net.cn Tier 2

Now, the telephone numbers are managed by province or carrier code, you might judge which province or carrier the numbers belong to.

Registration plan is studied but not finished, of course it should cooperate with carriers, telephone number management should be independent with NAPTR records management to prompt NP

Resolution Logs 6923 queries, Dec. 2003 4288 queries, Jan. 2004 7741 queries, Feb. 2004

Integrated ENUM Trial Platform Cont’d

ENUM registration platform WWW.ENUM.CN Announced to public users in the 2nd w

hole meeting of Internet Society of China, in Dec. 2003

Trial registration under 6.8.e164.arpa. Over 260 users and 520 ENUMs are reg

istered Many people or companies show grea

t interest 9584 page views in Feb.2004

Integrated ENUM Trial Platform Cont’d

VoIP experience platform SIP UAs IP/GSTN gateway ENUM enabled SIP proxy

Open for public registration only for testing purpose, along with the ENUM registration website, only ENUM users can register sip account

Up to Feb. 2004, 205 sip accounts are registered

9029 calls among sip users(IP2IP) or through gateway(IP2Phone or Phone2IP)

ENUM Performance Test Internet-based ENUM resolution, to compare

the resolution performance with PSTN Two items are mainly considered

ENUM reply time & reply percentage, e.g. Remote query with cache, 18719 queries

(18610 reply, 99%), average 407 millisecond Remote query without cache, 18713 queries

(17360 reply, 94%), average 2266 millisecond ENUM server pressure

How to support tremendous queries Dynamic update with tremendous queries

Participation on the ENUM Activities

ITU-T Since 2002/02

IETF ENUM WG Input to the rfc2916bis

Organized or join in several workshop in Asia Pacific

CDNC activities

China MII-ENUM Study Group

Ministry ofInformation

Industry

ENUM TrialLeading Team

ENUMApplication

Study Group

ENUMProvision

Study Group

ENUMRegistrationStudy Group

ENUMRegulation andSecurity Study

Group

ENUMInternationalCoordination

Group

•CNNIC is the key member of MII-ENUM SG, which is under lead by MII, China•Carriers, Institutes, ISPs, and etc. are involved

Next Steps Continue the trial system and get feedback Research on the resolution performance and

administrative policy(Tier2), suitable for china

Promotion on ENUM/SIP application is a big challenge No license for Internet phone to end users is

issued in china, but many ISPs, carriers, and software vendors show great interest

Make suggestions to government to open business trial system(Number plan for SIP with ENUM resolution), and consider to deploy some open test with other carriers or ISPs

Thanks lee@cnnic.cn