Four Related Acronyms: ENUM, SIP, DMX and 2Pac How They All Come Together. - PowerPoint PPT Presentation

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Four Related Acronyms: ENUM, SIP, DMX and 2Pac How They All Come Together.

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The IETF View v. The Carrier View v. the End User View. Does QoS Matter? ... Tom Cruise and Katie Holmes. Global Disarmament. Etc. ... – PowerPoint PPT presentation

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Title: Four Related Acronyms: ENUM, SIP, DMX and 2Pac How They All Come Together.


1
Four Related Acronyms ENUM, SIP, DMX and 2Pac
How They All Come Together.
  • Tom Kershaw
  • Vice President, VoIP
  • VeriSign

2
Yet Another Take On ENUM(aka Agenda)
  • ENUM Defined for the 34,567th time
  • ENUM the Theory
  • Peering, Traffic Sharing, Killing the PSTN etc
  • The SIP Way
  • The ENUM Way
  • The IETF View v. The Carrier View v. the End User
    View
  • Does QoS Matter?
  • Does Network Interoperability Matter?
  • Why Do Gangsta Rappers Love ENUM?

3
What Is ENUM?
  • ENUM is a protocol
  • Born in the IETF
  • Simple Concept Use DNS to resolve addresses for
    VoIP
  • Approved, Done, and Nothing Controversial
  • If We Just Talked About ENUM the Protocol, this
    would be a very short conference
  • ENUM is a Political Movement
  • Ownership of Addresses
  • National Sovereignty
  • Tom Cruise and Katie Holmes
  • Global Disarmament
  • Etc.
  • There is a strong need to separate the
    protocol/implementation issues from the public
    policy issues

4
Some Initial Comments on ENUM
  • Private (Carrier) ENUM v. Public (User) ENUM
  • Debates, Controversy, Confusion
  • The Key Points
  • Carrier and User ENUM are different and should
    have different structures
  • Carrier and User ENUM are consistent and can
    co-exist peacefully
  • There is no clear agreement on what ENUM is for
  • The wonderful world of the Internet
  • The wonderful world of the PSTN
  • The alleged convergence of these two things
  • OR.Something totally different
  • SIP Peering is 100x bigger than ENUM right now
  • .(which is like Luxembourg calling Lichtenstein
    small)

5
Current State of ENUM
  • Public ENUM trials and production environments
  • Austria, Australia, Korea are leading
  • Volume is very small
  • Driven by the Internet Community
  • Dependent on users actually caring
  • Public ENUM Regulatory Bodies
  • U.S., Japan
  • Driven by the PTTs
  • User involvement is little to none
  • Private ENUM efforts
  • Cable
  • Mobile Operators

6
Drivers for ENUM
  • The Driver Matters Results are Different
  • Internet Community Driven
  • PTT Driven
  • Mobile Content Driven
  • Our View What is the Goal of ENUM To Drive
    IP-to-IP Communications that goes beyond
    traditional voice
  • People assume that VoIP operators and users are
    driving ENUM but they are not

7
Who Cares About ENUM?
What are you talking about?
I love ENUM! I have all of his CDs!
I dont care about ENUM!
8
VoIP and ENUM
  • ENUM is not relevant to VoIP yet
  • Volumes are too small
  • Japan Case
  • 10 million VoIP endpoints
  • 10 x 10 5 of calls are IP to IP
  • Benefits of the query with a 5 resolution rate
    is questionable
  • ENUM matters only when you can drive res rates
    above 25
  • Enterprise Verticals
  • Communities of Interest
  • Peered Private-Public ENUM structures
  • Cable Efforts are Likely to be Key Drivers
  • IE we have to drive volume and drive resolution
    rates up collectively rather than pursuing our
    own private interests

9
  • Conclusion VoIP operators and users do not care
    about ENUM at present
  • But there is someone who does care about ENUM..

10
Who Cares About ENUM?
I Love ENUM!
ENUM is great! It makes me money.
11
ENUM and Mobile Content
  • ENUM is currently driven by mobile content
  • 50 Cent makes more money off of ENUM than all the
    VoIP operators combined
  • When a user downloads a ringtone, it is sent to
    the destination MMSC using SMPP
  • SMPP requires a mailto address
  • ENUM is used to discover the mailto address of
    the destination
  • This application leads to some perverse results
  • how to you map the phone number to the correct
    mailto
  • what if the number is ported?
  • what is the number is issued under an MVNO?

12
Business/Regulatory State of the Roots
  • Tier 0
  • Only one database controlled by RIPE NCC and ITU
    (policy only)
  • Contains participating country codes.
  • Delegation would be at the NPA level for the US
  • Tier I
  • Several valid country specific public trials
    Austria is leading
  • U.S. has decided to issue a tender for CC1, split
    into to administrative domains
  • Lots of Boring Trials Going on Now
  • Tier II
  • A Few Interesting Trials Underway
  • Every Carrier and Cooperative will have a Root
  • VoIP Tier IIs brag about 500K users Mobile will
    be in the 50 Millions soon
  • There are actually many ways to do this.

13
Current Issues With ENUM
  • Very few VoIP platforms support ENUM today
  • Nobody has figured out how to make money from
    ENUM yet
  • Nothing in ENUM you cant do with SIP
  • Huge political issues over data ownership
  • Two camps
  • I want the data and I want everything to be free
  • ENUM solves only a small part of the problem
  • Where you are is easy how to get to you in a
    secure, reliable matter is another issue
  • Mobile Content application is creating a critical
    mass in ENUM that is not necessarily consistent
    with the VoIP application

14
ENUM Missing Pieces
  • I Know the Destination Domain of the Called Party
  • I Can Now Query the Destination to Find the IP
    Address
  • But
  • What QoS Rules are Associated with the
    Destination
  • What Protocol/Variations are Available at the
    Destination
  • What Network Path to Take
  • What Security Policies/Keys Are Needed
  • ENUM provides the information, but assumes the
    network will be able to figure it out.
  • Reality It Wont (at least not yet)

15
Private Peering Real World Example
IN NAPTR 10 10 "u" "E2Usip"
!.!siptkershaw_at_verisign.com! IN NAPTR 10 10
"u" E2Umailto" !.!mailtotkershaw_at_verisign.c
om
Private Root
Private ENUM
Enterprise Location Server
Call Control
Call Control
Call Control
Call Control
16
QoS Perceived if Not Real
  • Many Carriers Enterprises utilize MPLS for
    Real-Time Transport
  • Connection oriented traffic engineering with
    bandwidth protection
  • Quality-of-Service mechanisms (e.g. voice
    prioritization)
  • Secure MPLS Tunnels/MPLS Virtual Private
    Networking
  • Problem No Exit
  • MPLS protects the on-net traffic
  • There is no way off
  • Firewalls are never touched

Federated Extranet (Domain Bridging NAP)
NRD
THIG
Redundant carrier-grade THIGs utilized by one or
more federation members
VoIP Gateway
Internet Gateway
MPLS CORE
INTERNET
PSTN
SITE A
SITE B
Internet/External connectivity is a completely
separate connection
Signaling
Bearer
17
MPLS and ENUM
Federated Extranet (Domain Bridging NAP)
SS7
DNS
INTERNET
NRD
ENUM
PSTN
THIG
MPLS Carrier A
MPLS Carrier B
DA
Corporation A (MPLS VPN A)
Corporation B (MPLS VPN B)
Corporation B (MPLS VPN B)
Corporation A (MPLS VPN A)
Signaling
Bearer
18
Public and Private A Real Example
IN NAPTR 10 10 "u" "E2Usip"
!.!siptkershaw_at_verisign.com! IN NAPTR 10 10
"u" E2Umailto" !.!mailtotkershaw_at_verisign.c
om
Austrian Public Root
VeriSign Private Root
Company 2
Company 1
19
ENUM with SIP Functionality
EREG
IN NAPTR 10 10 "u" "E2Usip"
!.!siptkershaw_at_verisign.com! IN NAPTR 10 10
"u" E2Umailto" !.!mailtotkershaw_at_verisign.c
om
Tier 1 ENUM
Device Resources
Tier 2 ENUM
Location Server/Registrar
Call Control
Call Control
Call Control
Call Control
Perimeter Security and Interop Resources
20
ENUM Issues to Be Resolved
  • Critical Mass (the Network Problem)
  • Application developers
  • Public or private directories
  • Update rate
  • One or many - providers, databases,
  • Regulatory and policy issues
  • New identifiers
  • Coverage
  • PSTN Service Logic

21
Conclusions
  • ENUM is currently a mess
  • Private, Public, Mobile applications are
    uncoordinated and there is mass confusion
  • Keep the end goal in mind creating a public IP
    infrastructure for applications (voice, video,
    IM, gaming, etc)
  • Opt-Out of Opt-In
  • First to 30 million wins
  • Anyone doing Private ENUM that is not peering is
    being short-sighted
  • And finally

22
ENUM is the Preferred Protocol of Gangsta Rap!
23
Thank You
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