Embed Size (px)
Citation preview
Using Wireless Technology at a Small Urban Institution
Bank Street CollegeCopyright Christina D'Aiello and Arlen E. Rauschkolb, 2002. This work is the intellectual property of the author. Permission is granted for this material to be shared for non-commercial, educational purposes, provided that this copyright appears on the reproduced materials and notice is given that the copying is by permission of the author. To disseminate otherwise or to republish requires written permission from the author.
Bank Street College
About Bank Street
Location – Morningside Heights An interesting neighborhood
Bank Street - A Unique Institution
School for Children Graduate School Continuing Education Family Center Liberty Program
The Challenge
Network Topology Current Location New Location
PBX
Switch
BANK STREET NORTH
?
ANNEX
INTERNET
Firewall
1st Floor
2nd FloorCORE
PBX
BANK STREET MAIN (SOUTH)
C level Switch
CSU/DSU
The Choices
Leased T1 DSL/ISDN Wireless
Laser Microwave Radio Frequency
Requirements
Turnkey systems Voice mail 4 digit dialing Email Administrative databases Internet
The Choice - Laser
Line of site Cost effective Reliable Easy integration
ICS – Infrared Communications Systems, Inc.
100 MB Laser – point to point Reliable (no intervention for recovery) Already successful in NYC
Equipment Phones:
• IP/MUX • T1 cards for PBXs
Data• Wireless heads• Core change - Business Policy • Stack config for Bank Street North
Installation
Site prep Fiber and power to roof Security for wireless head
Mount equipment Alignment
Basic Design
PBX
SWITCH SWITCH
IP/M
UX
PBX
Tower PC
IP/M
UX
Tower PC
Laser printer Laser printer
Server
Bank Street Main Bank Street North
IPMUX
PBX
Switch
BANK STREET NORTH
IPMUX
Bank Street Implementation
ANNEX
INTERNET
Firewall
1st Floor
2nd FloorCORE
PBX
BANK STREET MAIN (SOUTH)
C level Switch
CSU/DSU
Operation/Management
Check Link Stats Physical readings Link Manager
Monitor network traffic
The Reality
Traffic slowdown in the C level/Annex Lost link in fog Outages/saturations in clear weather
Issue: Traffic slowdown
PBX
Switch
BANK STREET NORTH
IPMUX
IPMUX
Switch
IPMUX
ANNEX
INTERNET
Firewall
1st Floor
2nd Floor CORE
PBX
BANK STREET MAIN (SOUTH)
C level Switch
CSU/DSU
Issue: Weather outages
Fog Heavy Snow Heavy Rain
Issue: Saturations
Backup Solutions Data
Local server for data/printing Phones
Dedicated T1 Remote voice mail system
Conclusions Monitoring
Investigate reasonable monitoring tools before a problem; pull copper to roof
Contingency plans for all services Phones Data
