1itu telecom 99 internet standardization and the ietf fred baker ietf chair fred baker ietf chair

1ITU Telecom ‘99

Internet Standardization and the IETF

Fred Baker

IETF Chair

Fred Baker

IETF Chair

2ITU 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

3ITU Telecom ‘99 3

IETF HistoryIETF History

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

Changed IETF composition and roles

1 4 7 10 13 16 19 22 25 28 31 34 37 40 43 46

IETF Number

Actual Avg..

Vendor/International

Research/Educationprimarily US

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

USA71.6%

Other5.5%

JAPAN7.6%

Sweden1.8%

Germany1.9%France

Canada3.1%UK4.2%

Netherlands2.2%

IETF Growth by CountryIETF Growth by Country

• December 1996

• 11 Countries

• July 1999

• 33 Countries

Japan6%

USA48%

Other 8%

Italy2%

Netherlands3%Canada3%France4%Finland4%Germany5%Norway5%

Sweden6%

IETF StructureIETF Structure

IETF structures and key forums

• Internet Architecture Board

• Internet Engineering Steering Group

• Working groups in eight areas

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

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

Working groups in eight areasWorking groups in eight areas

Internet

Routing

Transport

Applications

Security

Network operations and management

User services

General

InternetInternet

• 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, ...

RoutingRouting

• Mission

“So how does a packet get there, anyway?”

BGMP, MPLS, MSDP, manet, vrrp, bgp, ospf, idmr, SNA...

TransportTransport

• Mission

QoS management

End to End delivery issues

Telephony issues

Diff-serv, int-serv, megaco, sigtran, audio/video, rap, ...

ApplicationsApplications

• Mission

Infrastructure applications development and extension

Historical applications

Web, LDAP, edi, nntp, smtp, ftp, telnet, calendaring, mime, etc.

SecuritySecurity

• Mission

Developing procedures and protocols to enhance security in the internet

Ipsec, pki, transport layer security, web transaction security, pgp, one time password, etc...

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

Snmpv3, policy, various mibs, agent extensibility...

Ngtrans, year2000, mbone deployment, routing policy system, ...

User ServicesUser Services

• Mission

Provide documentation of IETF procedures to less involved communities

Responsible use of the net

Web elucidation of internet-related developments

FYI updates

User services

GeneralGeneral

• Mission

If we can’t think of another place to put it, it goes here

• 1 working group

Poisson: standing rules committee

Working group summaryWorking 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

IETF ProcessIETF Process

MembershipMembership

• IETF members are people

As opposed to nations or companies

• Communications tend to be among people

As opposed to working groups, boards, etc.

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

Two types of documentsTwo types of documents

• Internet Drafts

• RFC - “Request for Comments”

Internet DraftsInternet 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 draftsWorking Group documents

Submissions to working groups

Individual Submissions

RFCsRFCs

• Historical Archive

• Many kinds of documents

Informational

Historical

Experimental

Standards

• Standards

Proposed, Draft, Full

Best Current Practice

Development ProcessDevelopment Process

• Bottom-up

WG charters developed to support work people want to do

• Development Process

Working groups develop

IESG reviews

RFC Editor publishes

Relations among standards bodiesRelations among standards bodies

“Anyone who likes legislation or sausage should watch neither one

being made”

Baron von Bismarck

“Anyone who likes legislation or sausage should watch neither one

being made”

Baron von Bismarck

Historical role of various standards bodies

• ITU-T

• IEEE

• ETSI

• W3C

• IETF

• Various marketing fora

ATM Forum

ADSL Forum

MPLS Forum

etc...

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

European Telecommunications Standards Institute (ETSI)

• European Telephony Standards

http://www.etsi.org

GSM Telephones

WAP - Wireless Access Protocol

World Wide Web Consortium (W3C)

• Primarily Web services

http://www.w3.org

Headed by Tim Berners-Lee, inventor of HTML

• Developed HTML, XML, etc.

ITU Telecommunication Standardization Sector (ITU-T)

• Primarily related to telephony

http://www.itu.int/ITU-T

Consortium of

Telephone companies

Their traditional vendors

ITU-T DevelopmentsITU-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

IP/ATM

ISO JTC1 voice control

IP Telephony call signaling

IETF: Infrastructure protocolsIETF: Infrastructure protocols

• Some link layer

• 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

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...

How IETF sees work dividedHow IETF sees work divided

• Applications come from all over

• IETF

Provides network infrastructure

Tends to use interfaces defined by other bodies

HTMLHTTP

UDP RTP

Ethernet ATM Frame Relay PPPCellular Radio

Telephony Signaling

A variety of physical layers and interfaces

Internet ProtocolTCP

Mail SNMPVoice/ VideoData

IEEEETSI

So where is the Internet going?So where is the Internet going?

“As for the future, your task is not to foresee, but to enable it.”

Antoine de Saint-Exupéry

“As for the future, your task is not to foresee, but to enable it.”

Antoine de Saint-Exupéry

IETF vision for the futureIETF vision for the future

• Short term

Internet as interconnected competing service providers

• Long term

Internet as universal interconnect

Internet as interconnected competing service providers

• Dominated by

Service Providers and

Large enterprises

• A “network of networks” which have different policies and goals

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

• Email

• Information search/access

• Subscription services/“Push”

• Conferencing/multimedia

• Video/imaging

1997 1998 1999 2000 2001

Traffic Projections for Voice and Data

Rel. BitVolume

Circuit Switched Voice

Data(IP)

““From 2000 on, 80% of ServiceFrom 2000 on, 80% of ServiceProvider Profits Will Be DerivedProvider Profits Will Be Derivedfrom IP-Based Services.”from IP-Based Services.”Source: CIMI Corp.Source: CIMI Corp.

Growth of IP Traffic Growth of IP Traffic

Source: Multiple IXC Projections

Cross over date varies with

measuring point

In summary...In summary...

“I came, I saw, I couldn’t believe my eyes”

Julius Caesar,

as portrayed in Asterix in Britain

“I came, I saw, I couldn’t believe my eyes”

Julius Caesar,

as portrayed in Asterix in Britain

When standards collide...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

The place of standards bodiesThe 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

1itu telecom 99 internet standardization and the ietf fred baker ietf chair fred baker ietf chair

itu telecom

ietf process slide

ietf history slide

ietf structure slide

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adelaide slide

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ietf growth

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