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The Internet:
Maturing to a Critical Infrastructure
SUPERnet
January 22, 2002
Fred Chang
Fred Chang
President & CEO
President & CEO
SBC
SBCTechnology
TechnologyResources,
Resources,Inc.
Inc.
Agenda
1. First 30 Years
– Historical Perspective & Timeline
2. Broadband Internet
– Broadband Adoption, Providers, Use and
Applications
3. Critical Infrastructure
– Increasing Bandwidth
– Network Gets Smarter
– Management and Security
© SBC Technology Resources, Inc. 2002
Internet Timeline
Broadband
Internet
Netscape IPO
World Wide Web
Yahoo!
IPO
TCP/IP
Web Browser
UUCP
2003
2001
1999
1997
1991
1989
1987
1985
1983
1981
1979
1995
NAPs
NSFNET
1977
1975
1973
Ethernet
1993
ARPANET
1971
1969
160
130
100
90
80
70
60
50
40
30
20
10
0
© SBC Technology Resources, Inc. 2002
Residential Broadband Adoption
Number of households in millions
28.3
30
23.3
25
17.1
20
15
11.1
10
5
0
2001
2002
2003
2004
Source: Gartner Dataquest
© SBC Technology Resources, Inc. 2002
Makeup of Broadband in 2002
62.7
70
60
50
40
29.7
30
20
5.4
10
0
DSL
Cable
2.2
Satellite
Wireless
Source: Gartner Dataquest
© SBC Technology Resources, Inc. 2002
Broadband Use Is Exploding
Broadband is not just faster,
it’s a whole new experience.
Users online:
DSL
Dial-up
25 hours per week
7.5 hours per week
© SBC Technology Resources, Inc. 2002
Hooked on Broadband
Broadband
Users Value DSL
% who would give up:
78%
daily newspaper
74%
AM/FM radio
63%
morning coffee
59%
cable TV
© SBC Technology Resources, Inc. 2002
The Broadband Home
Internet
Camera
Entertainment
Center
Telephone Jacks
Monitor
Broadband
Home Gateway
Network
Printer
Wireless
Pad
Internet
Phone
Digital
Picture
Frame
Phone + DSL
Smart
Appliances
© SBC Technology Resources, Inc. 2002
Home Networking Example
Home
Network Hub
Home
Network
RioReceiver
Central
Office
Phone +
DSL
Wireless Laptop
Wireless Appliance
Broadband
Home
Gateway
© SBC Technology Resources, Inc. 2002
Hosted Network Software
Software Delivery
“In three to four years, high speed
broadband communications will be
available everywhere. The notion
of software as a packaged product
will disappear. That’s a fact.”
Steve Ballmer, CEO Microsoft
© SBC Technology Resources, Inc. 2002
Peer to Peer Computing
Company
A
Company
B
P2P will enable ad-hoc inter-company workgroups
© SBC Technology Resources, Inc. 2002
Home Monitoring & Automation
1.
Sensors monitor home and send notification
of any “events”
2.
Events flow through PC and to home
monitoring system
DSL
3.
Events are stored in user’s account and are
accessible via the web. Pager/email
notifications can also be sent.
© SBC Technology Resources, Inc. 2002
Increasing Bandwidth
• .COM bursting bubble did not throttle
demand
• Demand will catch up
• Applications will fill any given capacity
over time
© SBC Technology Resources, Inc. 2002
“Big Pipe” Technologies
Gigabit
Ethernet
SONET
Fiber
Channel
OADM
OADM
Fiber
Channel
OADM
OADM
ESCON
Gigabit
Ethernet
SONET
ESCON
© SBC Technology Resources, Inc. 2002
Ethernet Invades the Core
Layer 2 Switching
Network
Core
Network
Edge
Layer 3 Routing
© SBC Technology Resources, Inc. 2002
The Network Gets Smarter
© SBC Technology Resources, Inc. 2002
Quality of Service
• Peak bandwidth
• VoIP
• Minimum guarantees
• Video telephony
• Packet loss metrics
• Audio entertainment
• Absolute delay limits
• Video entertainment
• Differential delay
limits
• Mission-critical
© SBC Technology Resources, Inc. 2002
Virtual Networks
A
A
B
A
B
Public
Network
B
B
A
© SBC Technology Resources, Inc. 2002
Stability
• Carrier class elements
• Rerouting
• No more router
reboots
• Reliability
• Availability
• Redundancy
© SBC Technology Resources, Inc. 2002
Manageability: SNMP Meets OSS
• Capacity planning
• Performance monitoring, load sharing
• Automated fault detection, isolation,
recovery
• Usage-based billing
• Decision support
• Customer network management
© SBC Technology Resources, Inc. 2002
Internet Security
Malicious Code
Worms
Session Hijacking
Viruses
Trojans
Buffer Overflows
Port Scanning
Denial of Service
© SBC Technology Resources, Inc. 2002
Problem is Worsening
Code Red
60000
50000
Anna Kournikova
Melissa &
ILOVEYOU
40000
Tequila
30000
Badtrans
Nimba
Good Times
20000 Jerusalem Michelangelo
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
Source: CERT®
Coordination Center
Carnegie Mellon
1988
10000
© SBC Technology Resources, Inc. 2002
Core Network Security
Most security now at
the edge
• Firewalls, Hosts, Applications
Can we make
the core more secure?
• Large networks
• Broad participation
• Novel approaches
© SBC Technology Resources, Inc. 2002
Perception Versus Reality
Internet Growth
(Jan. 2000 through December 2001)
150
5000
130
120
110
3000
100
90
2000
80
1000
Host Count (Millions)
4000
Stock Index
140
70
J
F
M
A
M
J
J
A
S
O
N
D
J
F
M
A
M
2000
J
J
A
S
O
N
D
2001
Host Count
Nasdaq
© SBC Technology Resources, Inc. 2002
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