Transcript Document 7161516

Multicasting Across
Internet2 from the Edges of
the Network
Presenters: Dan Cotton, Bob Dixon,
Kevin Gamble, Jim Sturm
ADEC Web Site
www.adec.edu
Goal:
Bring advanced
networking applications to
geographically remote
learners for purposes of
research, teaching and
extension.
Objectives
AISEP will:
 explore
use of satellite to
deliver Internet services to
determine compatibility of
satellite technology with I2
services and applications
Objectives (cont.)
 explore
deployment and
integration of DE
applications, including
collaborative applications at
rural, remote institutions and
extension learning centers
Research questions
 establish
standards for
"acceptable, applicationbased Internet" for remote
locations
 understand how to
establish, build and support
a satellite-based IP network
Research questions (cont.)
 build
a satellite gateway to the
commodity Internet and I2
 investigate QoS
 study network performance
Network Map Goes Here
Internet
Instructional
Sites
Tachyon Central
Ground Station
San Diego
Earth
Satellite
Internet 1
or
Internet 2
Permanent
Ground
Station
Transportable
Ground
Station
Instructional
Sites
Instructional
Sites
Unicast Vs. Multicast
Multicast Advantages
 Increases
network efficiency
 Consolidates bandwidth
 Reduces server load and cost
 It scales
Multicast: End-to-End
 Internet2
 PIM
Sparse Mode versus DVMRP
 Iowa State University

Multicast video streaming
 ITEC-Ohio
 ADEC router configuration
 Monitoring
 SDSC
Multicast: End-to-End
 Lessons
learned
Technology worked
 Internet2 multicast support was
intermittent
 Can gateway between PIM Sparse
Mode and DVMRP
 Many I2 sites NOT multicast enabled
 Cannot depend on it for regular use

Multicast: Head-end
Multicast: Head-end
 Lessons
 Apply
learned - Video
good production techniques
 Balance input sources (i.e., video
and audio levels)
 Managing the convergence of TV
and computer video production
 Staff appropriately
Multicast: Head-end
 Lessons
 Running
learned - Network
Mrouted (i.e., daemon
running on local CPE)
 Coping with the LAN (i.e. NAT,
firewall, filters, etc.)
 Educating local sites
Multicast: Head-end
 Lessons
 Turned
Learned – QuickTime
unicast to multicast
 MPEG4 = good quality audio/video
 No discernable difference using
400k vs. 1.2M MPEG4 streams
Multicast: Head-end
Transportable System
Design Goals
 Provide
high-speed Internet
access for ALL purposes,
including computers,
telephones and PDAs.
 Inexpensive to build and
operate
 Off-the-shelf parts for easy
duplication
Transportable System Design
Goals (cont.)
 Easy
to operate by one person
with one day training, with NO
hand tools.
 Small and light
 Reliable and adaptable to
diverse field conditions
 Easily modified
Planned Applications
 Emergency
communications.
 Provide distance learning in
under connected locations such
as rural areas and inner cities.
 Link field research to campus
computers and laboratories
and collaborators worldwide.
 Link field instruction and
demonstrations to campus
classrooms.
Planned Applications (cont.)
 Link
field activities to remote
databases, eg via PDAs.
 Special events, conferences,
fairs, etc.
 Remote monitoring of
construction projects.
Some Actual Applications

National Farm Progress
Show - rural Iowa
Sept 2002

Distance Learning
Conference,
Worthington, Ohio
October 2002

Kentuckyana Cattle
Auction - rural Kentucky
February 2003

Lewis and Clark Re-enactment,
Pennsylvania to Oregon and
back
2003-2006

Ladysmith, WI School District

Stark Co.,
OH Parks District

Stark Co.,
OH Education District
Ladysmith-Hawkins School District
Ladysmith, Wisconsin
www.lhsd.k12.wi.us
Students aiding the Wisconsin
Department of Natural Resources
tracking wolf pack locations.
 Involve classroom-based students
in analysis of stream quality and
release of brown trout.
 Virtual field trips to copper mines
in Upper Michigan.

Stark/Portage (County) Area
Computer Consortium
www.stark.k12.oh.us
31 school districts

Ohio & Erie Canal National Heritage Corridor


“Virtual tours” to promote site visits and handson research projects along the corridor and its
associated rivers.
Corridor as an outdoor classroom to monitor the
impact of human and ecological activities and
teach land stewardship.
Stark County Park District
http://www.starkparks.com/
 Nature
programs sent from
parks to classrooms
 Example
- Birds of Prey
Satellite Trailer Subsystems









Dish and Radio Transceiver
Power
Leveling and Aiming
Heating and Cooling
On-Board Computer
Local Wired and Wireless Connections
Specialized Remote Units
Telephone
Video Broadcasting and Conferencing
Ground Station Power
Alternatives (all are provided)
 Type
of power
 Running
Time
Local Power Outlet
(long extension cord)
unlimited
Batteries via UPS
(computer controlled)
4 to 8 hours before
recharging
Gasoline generator
(push button start)
3 days before
refueling
Also provides power to user-supplied equipment.
Weatherproof Equipment
Rack Cabinet
 Mounted
on shock absorbers
 Automatic thermostatically
controlled heater
 Automatic thermostatically
controlled ventilation fan
 No actual air cooling - use
provided parasol if needed
Weatherproof Equipment
Rack Cabinet (cont.)
 Contents:
 Radio transmitter and receiver
 UPS and batteries (more batteries
elsewhere)
 Auditory dish aiming instrument
 Ethernet switch, DHCP/NAT server
 Laptop PC
 Local wireless access point
 Power line frequency meter
Computing System
 Laptop
PC
 Runs 3 special programs:
 Satellite
aiming
 Dish Transceiver control and
monitoring
 UPS control and battery
monitoring
Computing System (cont.)
 Also
supports all Internet
access tools such as:
 Web
browsing
 E-mail
 H.323 video conferencing
 Distance learning tools
 Optional encryption
Ground Station to Local Site Connection Alternatives
(ALL are provided)
1
Long-Range
wireless
(up to 20 miles)
2
Wall-Penetrating
wireless
(several non-metal walls)
3
Local Wireless
(1000 ft)
4
Transportable
Ground
Station
Local Ethernet
Cable (200 ft)
Local
Site
Specialized Remote Units
Boat
Automobile
Satellite
Trailer
Backpack
Equestrian
(Wearable heads-up display under development)
The Satellite Trailer as a
Telephone Cell Tower
Handheld
Telephone
Satellite
Trailer
Telephony
Adapter
Cordless
Telephone
5 miles
Handheld
Telephone
Up to 4 telephone lines and 36 telephones, local wireless.
Transportable Satellite Internet System
Transportable Satellite Internet System
Transportable Satellite Internet System
Tachyon Central
Ground Station
San Diego, CF
Internet2 Conference
Washington, DC
Earth
Satellite
Internet2
Lewis and Clark
Keelboat on
Mississippi River
Lewis and Clark
Shore Encampment
near St Louis, MO
Total one-way path length 50,000 miles.
Small Satellite
Trailer
Weekly Educational Broadcasts and Conferences
Lewis and Clark
Mobile Satellite Link
MORENet
Apple
Research Channel
Internet
Questions