Network/Technology Infrastructure Plan Section 5 – 6 – 7
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Transcript of Network/Technology Infrastructure Plan Section 5 – 6 – 7
Network/Technology Infrastructure PlanSection 5 – 6 – 7
As prepared for the TUSD Governing Board Summer 2007
John BratcherNetwork 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
Computer IDF MDF Hub SiteInternet
Morrow Hub
100 Mbps bandwidth
on LAN
1 Gbps bandwidth
on LAN
1.5 Mbps bandwidth on WAN
45 Mbps bandwidth on WAN
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
• Elementary Schools 1.54 Mbps• Middle Schools 1.54 Mbps• High Schools 3.08 Mbps
Recommended Bandwidth – based on average
50 Kbps/student
• 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
• 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 Mbps-
145 Mbps (E-rate)
• Voice – Converged but not fully IP enabled
• Variety of cabling and switching from CAT3 (10 Mbps) to CAT5 Enhanced (1 Gbps)
Recommended • Bandwidth – 1 Gbps
upgradeable to 10 Gbps
• All voice systems –IP Enabled
• 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