Transcript TUSD - Technology Oversight Committee

Network/Technology Infrastructure Plan
Section 5 – 6 – 7
As prepared for the TUSD Governing Board Summer 2007
John Bratcher
Network Security Systems Analyst
Today’s Topics
• Section 5 – Proposed District Standards
• Section 6 – Emerging Technology
Considerations
• Sections 7 – Data Protection and Disaster
Recovery
Bandwidth Contexts
100 Mbps
bandwidth
on LAN
Computer
1 Gbps
bandwidth
on LAN
IDF
MDF
1.5 Mbps
bandwidth
on WAN
Hub Site
45 Mbps
bandwidth
on WAN
Morrow
Hub
Internet
145 Mbps ISP
Uplink
Greater Bandwidth demands
• Increasing use of streaming video
• Increasing use of video teleconferencing and distance
learning
• Increasing trends toward 1:1 computing in K-12
• Increasing use of web-based (versus computer-based
or textbook based) instructional materials.
• Increasing use of IP-based voice
Specialized systems that depend on the network
• Environmental
Management Control
Systems (EMCS)
• Fire Alarm System
• Security Alarm/ Video
Surveillance System
• Access Control System
• Irrigation Systems
• Distance Learning
Systems
• Conference Bridge
System
• Remote Access (VPN)
for staff and teachers
(limited)
• TUSD Television
Broadcasting System
Bandwidth
Current Bandwidth
Recommended Bandwidth
– based on average
50 Kbps/student
• Elementary Schools 1.54 Mbps
• Middle Schools
1.54 Mbps
• High Schools
3.08 Mbps
• Elementary Schools 100 Mbps
• Middle Schools
300 Mbps
• High Schools
500 Mbps
Detailed “PER SITE” of calculations in Table C-2 of Appendix
Proposed District Standards
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Classroom configuration
Building configuration
District level configuration
Bandwidth Needs
Equipment replacement schedule
Disaster Recovery
Infrastructure Standard for each Classroom:
• 1 drop (6-12 strands) fiber optic cabling (rated at
10Gbps- operated at 1 Gbps)
• 2 CAT5 Enhanced copper drops PoE
• 1 for wireless Access Point
• 1 for voice
• Classroom data cabinet including 24 port managed
switch (1 Gbps)
• 8 CAT5 Enhanced copper data drops
• APPROVED Standards – in packet
Infrastructure Standard for each Classroom:
Infrastructure Standard for each School Site
• Adequate switching and cabling capability to
support all classrooms at 1 Gbps
• Uninterrupted Power Supplies to handle PoE
requirements at all IDFs
• Adequate electrical capacity
• Adequate HVAC
Infrastructure Standard District Level
Current
• Bandwidth = 75 Mbps145 Mbps (E-rate)
Recommended
• Bandwidth – 1 Gbps
upgradeable to 10 Gbps
• Voice – Converged but
not fully IP enabled
• All voice systems –IP
Enabled
• Variety of cabling and
switching from CAT3 (10
Mbps) to CAT5
Enhanced (1 Gbps)
• All cabling/switching to
support 1-10 Gbps
Targeted Needs:
• Upgrade network hardware and bandwidth to support
the network core, distribution and access layer
connections
• Upgrade all copper cabling to Cat 5 Enhanced
• Installing LAN wireless access points to provide
coverage in all learning areas
• IP-enable PBX equipment
• Install fiber optic cabling within and to all buildings on
a campus
Emerging Technology Considerations
• IP-Enabled Voice systems
• Establish the role of wireless
• Support expressed academic technology
needs:
• Increased Capacity
• Remote Access
• Parent-Teacher Communications
• Review of Special-purpose network services
Data Protection and Disaster Recovery
• Mission Critical
• District information stored in electronic form that is
reliable and automated
• Procedures for recovery from possible disasters
have been carefully designed
Data Protection and Disaster Recovery
Central Servers
• Tape library is outdated
• Technology is outdated
• Capacity is inadequate
• Process is inefficient
• No off-site redundancy
Site Servers
• Tapes fail
• Tape drives fail
• Tape capacity is inadequate
• All data cannot be backed up
• Backups are recycled too quickly
Questions