The State of the IETF Keeping one Internet Harald Alvestrand, IETF chair Antalya, May 13, 2001

The IETF in review  What is the Internet?

 What is the IETF?

 What does the IETF work on?

 What challenges do we face?

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  Internet directions and concerns

The Internet today

UoSAT-12

 The optical internet backbone  Gigabit to terabit links

Internet in Airlines Campus Networks (LANs)

 Access networks  xDSL, cable modem, ISDN, asynchronous dial

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

Fundamental working principle

“ We reject kings, presidents, and voting.

We believe in rough consensus and running code.

Dr. David C. Clark, ” Massachusetts Institute of Technology

Fundamental perspective of enlightened self-interest  There is no one organization or company which has a corner on intelligence or expertise  Good ideas that help our markets come from everywhere and anywhere  Therefore, our separate markets grow interdependently  Example: A better routing algorithm might make network computers a more acceptable product

How IETF sees work divided

IEEE Mail W3C TCP HTML HTTP SNMP UDP Voice/ Video Data RTP Internet Protocol Ethernet ATM Frame Relay PPP A variety of physical layers and interfaces Telephony Signaling

MPLS

Cellular Radio



ITU-T

Applications come from all over

ETSI

 IETF  Provides network infrastructure  Tends to use interfaces defined by other bodies  Wants to make sure the whole thing works

IETF: infrastructure applications  SNMP management  SMTP mail  DNS name services  LDAP directory services  Telnet virtual terminal protocol  FTP file transfer  HTTP web transfer  And more...

IETF vision for the future  Provider view  Internet as interconnected competing service providers  User view  Internet as universal interconnect  The harmony is not obvious to all

Growth of IP Traffic  Email  Information search/access

Rel. Bit Volume 250 Traffic Projections for Voice and Data

 Subscription services/“Push”

200 Data (IP)

 Conferencing/ multimedia  Video/imaging

150 100 Circuit Switched Voice “From 2000 on, 80% of Service Provider Profits Will Be Derived from IP-Based Services.” Source: CIMI Corp.

Source: Multiple IXC Projections 50 1997 1998 1999 Cross over date varies with measuring point 2000 2001

Millions 1,400 1,200 1,000 800 600 400 200 0 Projected PCs connected to the Internet (Dataquest 10/ 98) Projected cellular subscribers (Nokia 1999) Projected Web handsets (Nokia 1999) 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005

Threat to growth  Balkanization:  Names that can’t be used by all  Formats that can’t be used by all  Networks that can’t be used by all  We need one Internet!

One Protocol: IPv4 and IPv6

Private Internet $ IPv6 Internet IPv4 Internet

V6 and interworking  V6 is deploying (at last)  A plethora of interworking options  A lack of solid experience with usage  Some DNS details being worked on  AAAA vs A6, bitstring labels vs nibbles  Go Build Networks!

One spaghetti: Layer 2 1/2  MPLS, L2TP, ATM, All-over-All  Sub-IP Temporary Area TE-WG PPVPN Others MPLS Control CCAMP Measure IPO ATM FR Others

The Sub-IP Temporary Area  7 Working Groups  Shares AD with other areas (Bradner, Wijnen)  Structure how IP runs over lower layer media  Includes IP-in-IP, IP-in-MPLS and so on  Does NOT include MPLS-in-MPLS

One Routing Domain  100.000 routes  Probably greatest short term challenge  Exponential growth  Real requirements driving growth  Rethink required Source: Geoff Huston, TELSTRA

One Domain Name System      I18N challenges are more than technical Identifiers are not names Getting names into the DNS is the easy part Patents are a pain Bq —aervweor3dfae4rtobnlaruoo.com?

Courtesy of i-dns.net

We Want One Internet  Filled with opportunities  Global communication enhances business, trade, research  All opportunities come with challenges  IPv6 for more addresses  Internationalization for global reach  Scaling routing to a new level  Ours to be responsible with

Questions?