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ENUM Trial in France Sophie Coste-Martinez

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Availability. ETSI Plugtest ENUM Workshop - S10 - 24/02/2004 ... Domain Name Servers being setup. ENUM resolver design. Enumservices used: E2U sip, E2U h323... – PowerPoint PPT presentation

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Title: ENUM Trial in France Sophie Coste-Martinez


1
ENUM Trial in France Sophie Coste-Martinez
2
Outline
  • ENUM in France
  • Expectations
  • Numerobis
  • ENUM administration
  • Functional model
  • Service requirements and constraints
  • DNS analysis
  • Trial steps
  • Conclusion

3
ENUM in France
  • May 2001 public consultation initiated by the
    the National Regulation Authority
  • June 2001 creation of a national working group
    on ENUM
  • February 2002 call for a trial project
  • March 2002 project proposal
  • May 2002 proposal accepted ? Numerobis
  • February 2003 start of Numerobis project
  • Numerobis project is running until September 2004

4
Expectations
  • Numerobis main objectives
  • To develop an administration model for ENUM in
    France
  • To open the model for services provision by ASPs
  • To identify services requirements and constraints
  • To take into account Number Portability
  • To explore different choices of DNS-related
    techniques
  • To implement an ENUM platform in order to
    validate the defined model

5
Numerobis (characteristics)
  • A RNRT project (French National Network for
    Research in Telecommunications)
  • Different categories of partners
  • University (INT)
  • TSPs (fixed FT and mobile SFR, Orange)
  • ccTLD Registry AFNIC (.fr)
  • ENUM technology oriented
  • Experimentation but no commercial offer
  • Advanced analysis on DNS-related techniques
  • Keeping a close eye on the trends of
    standardization
  • Trial uses 3.3.e164.arpa and reserved numbering
    blocks

6
ENUM administration (issues)
  • Common agreement (ENUM national WG)
  • ENUM domain names administration should be mapped
    on E.164 numbers administration
  • No ENUM Domain names commercialization
  • Competition regards services provision
  • Tier2 is the entity who has contracted with the
    end user for the telephone subscription
  • TSPs or mandated third entities handle the ENUM
    domain names database
  • Guaranties
  • Consistency with the numbering plan
  • No need for a validation entity (validation is
    internal and simple)

7
ENUM administration
e164.arpa
Tier 0 root (ENUM reference)
France
3.3.
Tier 1 CC authority
?
8
Functional Model
  • Interfaces
  • International interface
  • Delegation and Management
  • Administrative, commercial
  • Technical (NAPTR update)
  • Administrative (Portability)
  • Technical (NAPTR update)

9
Services requirements and constraints (1/2)
  • Objective 
  • To identify a representative services panel
  • To derive these services' requirements  
  • Benchmark services
  • Conversational services
  • Messaging email, SMS, MMS
  • Web
  • Streaming
  • Directory services
  • Constraints
  • Load supported by DNS servers
  • Delay caused by DNS interrogation
  • Zone updates
  • Availability
  • .

10
Services requirements and constraints (2/2)
  • Service case

Related constraints
Internet
3
GSM
GW
2
IP
4
6
7
5
message
messag
VoIP service provider
VoIP to GSM Call
11
DNS analysis
  • User ENUM public DNS on the Internet
  • Issues regarding privacy no confidentiality,
    spam,
  • Serious concerns for different constraints
  • Solutions may reside in services
  • DNSsec
  • A solution for authentication and data integrity,
    but not for confidentiality
  • Increase time for data updating, responses
  • Impact on data organization
  • Implementations are still non mature
  • Still thinking about its potential use in ENUM

12
Trial steps
  • Current
  • DNS infrastructure recommendations for Tier1 and
    Tier2 entities
  • Domain Name Servers being setup
  • ENUM resolver design
  • Enumservices used E2Usip, E2Uh323
  • Next steps
  • ENUM resolver implementation
  • Administrative procedures
  • Architecture validation
  • DNS simulator

13
Conclusion
  • Numerobis project added values
  • An experience on ENUM technology
  • Guidelines for future ENUM administration and
    implementation in France
  • Contribution to standards
  • More info http//www.numerobis.prd.fr/
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