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The Bandwidth Explosion: Coping with Insatiable End-User DemandBill WohnoutkaVice President, Solutions Architecture
Disrupted Business Models
Disruption Occurring Now
Enablers of Disruption
• Reach and Scale
• Cost Improvement
• Market Adoption
What does the future of University Systems look like?
For the Fall 2009 admission cycle, four-
year colleges and universities received
an average of 80 percent of their
applications online, up from 72 percent
in Fall 2008, 68 percent in Fall 2007
and 58 percent in Fall 2006.
“
”-2010 State of College Admission report
What does the future of University Systems look like?
“
”
Moments before the start of class, I could
place a video into students’ dropboxes,
and the majority of them would arrive
having already watched it and able to
discuss it. Those sorts of things made the
class more interesting and dynamic and
could never have happened in the past.
-Professor Corey Angst, University of Notre Dame,
talking about his eReader course
“Using an iPad as a Textbook,” The Wall Street Journal, January 22, 2010
What does the future of University Systems look like?
By 2015, 25 million post-secondary
students in the United States will be taking
classes online. And as that happens, the
number of students who take classes
exclusively on physical campuses will
plummet, from 14.4 million in 2010 to just
4.1 million five years later.
-Ambient Insight Forecast
“
”
2015 Student Expectations
• On-campus experience
– Entertainment
– Communications
– Administrative Services
– Curriculum
• Ubiquitous broadband everywhere
– Fast
– Wireless
– Unrestricted
– Free
The broadband experience will become a critical differentiator for Universities
Is Your Campus Ready?
2010 2011 2012 2013 2014 2015
Year
Inte
rne
t T
raff
ic (
PB
pe
r m
on
th)
0
10,000
20,000
30,000
40,000
50,000
60,000
70,000
Voice over IP (VoIP)
Online Gaming
Video Calling
Web, E-mail, and Data
Internet Video
File Sharing
Year2010 2011 2012 2013 2014 2015
Inte
rnet
Tra
ffic
(P
B p
er
Mo
nth
)
Source: Cisco VNI, 2011
Busy-hour traffic is growing more rapidly than average traffic.
Source: Cisco VNI, 2011
“ During the busy hour in
2015, the traffic will be
equivalent to 500 million
people streaming high-
definition video
continuously. ”
Is Your Network A Fan?
35,000 Students on Campus
10% of Students Watch
So… 3,500 Campus Viewers @
10 Mbps Encoding
= 35 Gbps of Traffic for
ONE SHOW!
Easing the Tensions
Internet
ISP
Internet 2
University
Campus
Campus
LAN
CDN Caching
Source: Level 3 Communications
Transparent Caching
Source: http://www.peerapp.com/App_FCK/image/Transparent%20Caching.png
Caching Effectiveness 2015
Application Type Percent Cache-ability Improvement
File sharing 24% 60% 14.4%
Internet video 58% 90% 52.2%
Web, email, and data 15% 0% 0%
Video calling 3% 0% 0%
Online gaming 0.5% 80% 0.4%
Voice over IP (VoIP) 0.3% 0% 0%
Total 67%
Source: Level 3 Communications and Cisco VNI, 2011
Other Critical Technologies
• VBR Encoding & Adaptive Bit Rate Players
– Microsoft, Adobe, Apple
• P2P (for the purpose of good)
– Integration with Caching Network
• Multicast (Live Medium)
– Day and Date Content
• Traffic Segregation
– Class of Service Queuing
– Separate Physical Networks
