November 21, 20011 Experimental School Network Two-Way Satellite Access High Speed Internet Access...
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Transcript of November 21, 20011 Experimental School Network Two-Way Satellite Access High Speed Internet Access...
November 21, 2001 1
Experimental School NetworkTwo-Way Satellite Access
High Speed Internet AccessWeb Caching
Video DistributionDistance EducationVideo Conferencing
November 21, 2001 2
Overview
• Trial will run the whole year 2002, and part of 2003.• System will support:
- Two-way satellite access to selected schools.- Video distribution to school servers, for local
video-on-demand streaming.- Video conferencing & distance education.- Live video event streaming to schools.- High-speed Internet access over satellite link.- Local caching and serving of web objects.- School web hosting
November 21, 2001 3
Project PartnersRole ContributionProject prime $1.25M capital Implement & maintain network infrastructure ~$2M space segment & labour
Supplier for satcom equipment
Manage pedagogical component of trials $180-200K for school peripheralParticipate in overall project direction equipment
Key participant on pedagogical aspects Expertise & labourKey support in network implementation
School district representatives for each province Expertise & labour
Video servers, software & peripheral equipment Software development laboursupplier at schools & Telesat hub
Provide access to repository of multimedia learning $150-200K from BELLE projectobjects & support satellite network deployment
Participate in Ontario portion of trials & evaluation $60K for Ont school peripherals
Expected participation in assessing satellite access to Funding from BELLE project &Canadian repositories of multimedia learning objects upcoming CRAG project
November 21, 2001 4
Two-Way Satellite School Network
16 MbpsTDM Carrier
Three MF-TDMA Carriers 2 Mbps burst rate Carriers shared by all user
terminals
CA*net 3
InternetSchoolDistricts
TelesatOttawaGateway
Newfoundland
OntarioQuebec
November 21, 2001 5
Satellite Carriers
Three, 2 MbpsLow Power
MF-TDMA Carriers,shared by
school transmitters
16 MbpsHigh Power
TDM Carrier,transmitted from
Telesat hub,Ottawa
LegendTDM Time Division MultiplexMF-TDMA Multi Frequency – Time Division,
Multiple Access
November 21, 2001 6
Schoolnet-3 Network
16 MbpsTDM
Telesat Gateway/Hub 2 MbpsTDMA
School LAN
LinuxWeb Host& Cache
& Proxy Server
Computer withWindows 2000
& Callisto Video Client& Videoconferencing
Callisto/SunVideo Cache
& Server
Two-WayIndoor Unit
Outdoor Unit
Firewall/Router
Internet
Telesat HQ
CA*Net 3 / Dark Fibre / wireless
CallistoVideo Server WEB Cache Web Host for
schools
AlgonquinCollege
La CiteCollegiale
MemorialUniversity NFB Gloucester
HS
H&PESB
L&GSB
MagicLantern
Router
Two-Way Satellite LinkDelay = 0.25 sec. in each direction
Round Trip Delay = 0.5 sec.
School
Layer 2 Ethernet switch
Admin subnet
NAT, PEP, DHCP
November 21, 2001 7
Anik E2 Coverage (East Beam)
1.8 metre
1.2 metre
November 21, 2001 8
Newfoundland Schools
GlovertownGander
St. Bride’s
Port Saunders
St. Paul’s Intermediate GanderFatima Academy St. Bride’sRoncalli Central High Port SaundersGlovertown Academy Glovertown
November 21, 2001 9
Quebec Schools
Ste. Agathe
Saint-Damase
Kangiqsualujjaq (George River)
Wottonville
Ste. Agathe Academy Ste. AgatheEcole Saint-Damase Saint-DamaseEcole Hamelin WottonvilleEcole Ulluriaq KangiqsualujjaqEcole Otapi Manouane
Manouane
November 21, 2001 10
Ontario Schools
Hastings &Prince EdwardSchool District
- 3 schools -
BancroftNorth Hastings HighNorth Hastings Senior
TweedTweed-HungerfordElementary
MadocCenter HastingsHigh
MarmoraMarmora Senior
TrentonTrenton High
BellevilleH&PE Board OfficeBayside SecondaryCentennial SecondaryMoira SecondaryQuinte Secondary
BloomfieldPinecrestElementary
PictonPrince EdwardCollegiate
KasabonikaSinenokay Memorial
AmeliasburgKente Public School
Sinenokay Memorial KasabonikaH&PE Board Office BellevilleBayside Secondary Quinte WestKente Public School Ameliasburg
November 21, 2001 11
Distance Education
Camera
ProjectionScreen
Studio
Classroom
Satellite
SatelliteTX/RX
CA*Net3
Telesat(Ottawa)SatelliteGateway
November 21, 2001 12
Video Conference / Interactive LearningSatellite
Resource Centre
School
Telesat (Ottawa)Satellite Gateway
SatelliteTX/RX
CA*Net3
Cameras
November 21, 2001 13
High Speed Internet Access & Caching Satellite
Students usingweb browsers
SchoolWeb Cacheand Server
Telesat (Ottawa)Satellite Gateway
and Internet access hub
Internet
Origin Server
SatelliteTX/RX
November 21, 2001 14
Video Distribution and ServingSatellite
Studentswatching videos
from server
SchoolVideo Cacheand Server
Telesat (Ottawa)Satellite Gateway
Gateway VideoServer
SatelliteTX/RX
CA*Net3 Other Video Servers
November 21, 2001 15
Schoolnet-3 ScheduleTask Schedule
2001 2002 2003
1 Radio equipment tests over satellite at Telesat and CRC 17-Nov 30-Nov
2 Packaging of school equipment 3-Dec 30-Dec
3 Integration and testing of peripheral equipment 3-Dec 30-Dec
4 Install hub equipment 3-Dec 30-Dec
5 End to end testing with peripherals 2-Jan 31-Jan
6 School installations, testing, and user training 15-Jan 28-Feb
7 Trial starts 15-Jan 1-Mar
8 Develop Pedagogical Evaluation Plan 17-Nov
9 Implement plan 15-Jan
10 Evaluate results and modify plan 30-Jun
11 Trial ends 30-Jun*
*Depends on availability and health of satellite