internet standardization and the ietfitu telecom ‘99 2 thoughts i would like to address •ietf...
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1 ITU Telecom ‘99
Internet Standardization and the IETF
Fred Baker
IETF Chair
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2 ITU Telecom ‘99 www.ietf.org
Thoughts I would like to address
• IETF History, Structure, and Procedure
Who’s who in the IETF
• Relations among standards bodies
Who does what and why
• The big problems in the Internet
Ongoing work
How we’re going to solve them
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3 ITU Telecom ‘99 3
IETF History
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4 ITU Telecom ‘99 www.ietf.org
Internet Engineering Task Force (IETF)
• Historical developer of internet-related protocols
http://www.ietf.org
Consortium of individuals from
Research,
Education,
Network operators, and
Internet vendors
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5 ITU Telecom ‘99 www.ietf.org
Changed IETF composition and roles
-500
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IETF Number
Att
en
dan
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Actual Avg..
Vendor/International
Research/Education
primarily US
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6 ITU Telecom ‘99 www.ietf.org
Growth of international involvement in IETF
• Principle for placement of meetings:
“If I am doing the work, the meeting should sometimes be in my neighborhood”
• But most work is done on mailing lists anyway…
• Non-US Meetings:
1990: Vancouver
1993: Amsterdam
1994: Toronto
1995: Stockholm
1996: Montreal
1997: Munich
1999: Oslo
2000: Adelaide
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7 ITU Telecom ‘99 www.ietf.org
USA 71.6%
Other
5.5%
JAPAN 7.6%
Sweden
1.8%
Germany
1.9% France 2.0%
Canada 3.1% UK 4.2%
Netherlands 2.2%
IETF Growth by Country
• December 1996
• 11 Countries
• July 1999
• 33 Countries
Japan
6%
USA
48%
Other
8%
Italy
2%
Netherlands
3%
Canada
3%
France
4%
Finland
4%
Germany
5%
Norway
5%
UK
6%
Sweden
6%
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8 ITU Telecom ‘99 8
IETF Structure
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9 ITU Telecom ‘99 www.ietf.org
IETF structures and key forums
• Internet Architecture Board
• Internet Engineering Steering Group
• Working groups in eight areas
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10 ITU Telecom ‘99 www.ietf.org
Internet Architecture Board (IAB)
• Mission
“Supreme court” on appeals of IESG decisions
Think tank for future internet activities
• Recent activities
Really worried right now about
•End to end model of the internet
•Impact of wireless communications
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11 ITU Telecom ‘99 www.ietf.org
Internet Engineering Steering Group (IESG)
• Mission
Assure open-ness and adherence to process
Working group chartering and management
“Quality assurance” on specifications
• Activities and trends
Currently drawn into a “privacy” debate
Better addressed in area activities
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12 ITU Telecom ‘99 www.ietf.org
Working groups in eight areas
Internet
Routing
Transport
Applications
Security
Network operations and management
User services
General
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13 ITU Telecom ‘99 www.ietf.org
Internet
• Mission
IP/foo specifications
Interface configuration and management
IP developments, mostly IP6
• 15 working groups
Interface mibs, dnsind, dhcp, ipng, IP/cable|ADSL|IEEE 1394, PPP, ion, ...
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14 ITU Telecom ‘99 www.ietf.org
Routing
• Mission
“So how does a packet get there, anyway?”
• 17 working groups
BGMP, MPLS, MSDP, manet, vrrp, bgp, ospf, idmr, SNA...
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15 ITU Telecom ‘99 www.ietf.org
Transport
• Mission
QoS management
End to End delivery issues
Telephony issues
• 22 working groups
Diff-serv, int-serv, megaco, sigtran, audio/video, rap, ...
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16 ITU Telecom ‘99 www.ietf.org
Applications
• Mission
Infrastructure applications development and extension
Historical applications
• 26 working groups
Web, LDAP, edi, nntp, smtp, ftp, telnet, calendaring, mime, etc.
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17 ITU Telecom ‘99 www.ietf.org
Security
• Mission
Developing procedures and protocols to enhance security in the internet
• 15 working groups
Ipsec, pki, transport layer security, web transaction security, pgp, one time password, etc...
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18 ITU Telecom ‘99 www.ietf.org
Network Operations and Management (O&M)
• Mission
Making sure there is operational clue looking at the specifications and procedures
Network management (used to mean SNMP)
Making those two talk with each other
Y2k
• 20 working groups
Snmpv3, policy, various mibs, agent extensibility...
Ngtrans, year2000, mbone deployment, routing policy system, ...
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19 ITU Telecom ‘99 www.ietf.org
User Services
• Mission
Provide documentation of IETF procedures to less involved communities
• 4 working groups
Responsible use of the net
Web elucidation of internet-related developments
FYI updates
User services
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20 ITU Telecom ‘99 www.ietf.org
General
• Mission
If we can’t think of another place to put it, it goes here
• 1 working group
Poisson: standing rules committee
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21 ITU Telecom ‘99 www.ietf.org
Working group summary
• We have ~120 working groups
Not all currently active
• Cover support of infrastructure for the commercial IP internet
Not too worried about research network, unless they use the same technology
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22 ITU Telecom ‘99 22
IETF Process
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23 ITU Telecom ‘99 www.ietf.org
Membership
• IETF members are people
As opposed to nations or companies
• Communications tend to be among people
As opposed to working groups, boards, etc.
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24 ITU Telecom ‘99 www.ietf.org
Fundamental working principle
“
”
We do not worry about
presidents and kings;
We work by rough consensus
and running code Dr. David C. Clark,
Massachusetts Institute of Technology
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25 ITU Telecom ‘99 www.ietf.org
Two types of documents
• Internet Drafts
• RFC - “Request for Comments”
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26 ITU Telecom ‘99 www.ietf.org
Internet Drafts
• Most analogous to ITU “contributions” and “working papers”
Not necessarily work items
Half of all internet drafts are simply documents people have chosen to post
• Types of drafts
Working Group documents
Submissions to working groups
Individual Submissions
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27 ITU Telecom ‘99 www.ietf.org
RFCs
• Historical Archive
• Many kinds of documents
Informational
Historical
Experimental
Standards
• Standards
Proposed, Draft, Full
Best Current Practice
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28 ITU Telecom ‘99 www.ietf.org
Development Process
• Bottom-up
WG charters developed to support work people want to do
• Development Process
Working groups develop
IESG reviews
RFC Editor publishes
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29 ITU Telecom ‘99 29
Relations among standards bodies
“Anyone who likes legislation or sausage should watch neither one
being made”
Baron von Bismarck
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30 ITU Telecom ‘99 www.ietf.org
Historical role of various standards bodies
• ITU-T
• IEEE
• ETSI
• W3C
• IETF
• Various marketing fora
ATM Forum
ADSL Forum
MPLS Forum
etc...
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31 ITU Telecom ‘99 www.ietf.org
Institute of Electrical and Electronics Engineers (IEEE)
• Primarily link layer LAN standards
http://ieee.org/
Especially LAN standards in 802 series
IEEE 802.1 Bridging
IEEE 802.3 CSMA/CD Networks (Ethernet)
IEEE 802.5 Token Ring Networks
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32 ITU Telecom ‘99 www.ietf.org
European Telecommunications Standards Institute (ETSI)
• European Telephony Standards
http://www.etsi.org
GSM Telephones
WAP - Wireless Access Protocol
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33 ITU Telecom ‘99 www.ietf.org
World Wide Web Consortium (W3C)
• Primarily Web services
http://www.w3.org
Headed by Tim Berners-Lee, inventor of HTML
• Developed HTML, XML, etc.
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34 ITU Telecom ‘99 www.ietf.org
ITU Telecommunication Standardization Sector (ITU-T)
• Primarily related to telephony
http://www.itu.int/ITU-T
Consortium of
Telephone companies
Their traditional vendors
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35 ITU Telecom ‘99 www.ietf.org
ITU-T Developments
• Various connector standards
X.21, V.35, etc.
• Physical/Link layer network standards
X.25, Frame Relay, ATM, SDH
• Telephony on specific substrate
H.32x/H.310
• Specific collaboration:
H.323 uses IETF Data format
• Points of possible overlap with IETF
IP/SDH
MPLS
IP/ATM
ISO JTC1 voice control
IP Telephony call signaling
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36 ITU Telecom ‘99 www.ietf.org
IETF: Infrastructure protocols
• Some link layer
PPP
• Network Layer
IP4, IP6
Routing protocols
• Transport Layer
TCP, UDP, RTP
• Security services
Transport Layer Security, IPSEC, ISAKMP
• Telephony Signaling
Signaling transport
• Quality support
Differentiated Services
Integrated Services
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37 ITU Telecom ‘99 www.ietf.org
IETF: Infrastructure applications
• SNMP management
• SMTP mail
• DNS name services
• LDAP Policy services
• telnet virtual terminal protocol
• FTP file transfer
• HTTP Web transfer
• and more...
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38 ITU Telecom ‘99 www.ietf.org
How IETF sees work divided
• Applications come from all over
• IETF
Provides network infrastructure
Tends to use interfaces defined by other bodies
HTML
HTTP
UDP RTP
Ethernet ATM Frame Relay PPP
Cellular Radio
Telephony
Signaling
A variety of physical layers and interfaces
Internet Protocol
TCP
Mail SNMP
Voice/ Video
Data
IEEE ETSI
W3C
ITU-T
MPLS
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39 ITU Telecom ‘99 39
So where is the Internet going?
“As for the future, your task is not to foresee, but to enable it.”
Antoine de Saint-Exupéry
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40 ITU Telecom ‘99 www.ietf.org
IETF vision for the future
• Short term
Internet as interconnected competing service providers
• Long term
Internet as universal interconnect
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41 ITU Telecom ‘99 www.ietf.org
Internet as interconnected competing service providers
• Dominated by
Service Providers and
Large enterprises
• A “network of networks” which have different policies and goals
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42 ITU Telecom ‘99 www.ietf.org
Internet as universal interconnect
• IETF believes that the internet is the network of tomorrow
Telephone companies seem to agree
But how intelligent a network?
• Would like to see common procedures and protocols used throughout
Minimize translation problems
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43 ITU Telecom ‘99 www.ietf.org
• Information search/access
• Subscription services/“Push”
• Conferencing/ multimedia
• Video/imaging
250
200
150
100
50
1997 1998 1999 2000 2001
Traffic Projections for Voice and Data
Rel. Bit Volume
Circuit Switched Voice
Data (IP)
“From 2000 on, 80% of Service
Provider Profits Will Be Derived
from IP-Based Services.”
Source: CIMI Corp.
Growth of IP Traffic
Source: Multiple IXC Projections
Cross over date
varies with
measuring point
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44 ITU Telecom ‘99 44
In summary...
“I came, I saw, I couldn’t believe my eyes”
Julius Caesar,
as portrayed in Asterix in Britain
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45 ITU Telecom ‘99 www.ietf.org
When standards collide...
• Increasingly, convergence of Internet and PSTN networks causes collisions between the bodies that define their protocols and procedures
• The solution has to be in finding ways to:
Not compete in standardization
Focus on the problems remaining to be solved
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46 ITU Telecom ‘99 www.ietf.org
The place of standards bodies
• Each has its place in the mix
We need to work together on a global basis
• Competition between standards promotes inability to
Share solutions to common problems
Communicate among subscribers