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