Submitted by: Submitted by shoko
Views: 486
Words: 1831
Pages: 8
Category: Science and Technology
Date Submitted: 09/11/2011 09:47 PM
Introduction to IPv6
ISP/IXP Workshops
ISP Workshops
© 2010 Cisco Systems, Inc. All rights reserved.
1
Early Internet History
Late 1980s
Exponential growth of the Internet
Late 1990: CLNS proposed as IP replacement 1991-1992
Running out of “class-B” network numbers Explosive growth of the “default-free” routing table Eventual exhaustion of 32-bit address space
Two efforts – short-term vs. long-term
More at “The Long and Windy ROAD” http://rms46.vlsm.org/1/42.html
ISP Workshops
© 2010 Cisco Systems, Inc. All rights reserved.
2
Early Internet History
CIDR and Supernetting proposed in 1992-3
Deployment started in 1994
IETF “ipng” solicitation – RFC1550, Dec 1993 Direction and technical criteria for ipng choice – RFC1719 and RFC1726, Dec 1994 Proliferation of proposals:
TUBA – RFC1347, June 1992 PIP – RFC1621, RFC1622, May 1994 CATNIP – RFC1707, October 1994 SIPP – RFC1710, October 1994 NIMROD – RFC1753, December 1994 ENCAPS – RFC1955, June 1996
ISP Workshops © 2010 Cisco Systems, Inc. All rights reserved.
3
Early Internet History → 1996
Other activities included:
Development of NAT, PPP, DHCP,… Some IPv4 address reclamation The RIR system was introduced
→ Brakes were put on IPv4 address consumption IPv4 32 bit address = 4 billion hosts
HD Ratio (RFC3194) realistically limits IPv4 to 250 million hosts
ISP Workshops
© 2010 Cisco Systems, Inc. All rights reserved.
4
Recent Internet History The “boom” years → 2001
IPv6 Development in full swing
Rapid IPv4 consumption IPv6 specifications sorted out (Many) Transition mechanisms developed
6bone
Experimental IPv6 backbone sitting on top of Internet Participants from over 100 countries
Early adopters
Japan, Germany, France, UK,…
ISP Workshops
© 2010 Cisco Systems, Inc. All rights reserved.
5
Recent Internet History The “bust” years: 2001 → 2004
The DotCom “crash”
i.e. Internet became mainstream
...