1 © 2000, cisco systems, inc. course number presentation_id 802.11 wireless applications education...

1© 2000, Cisco Systems, Inc.

Course NumberPresentation_ID

802.11 Wireless 802.11 Wireless ApplicationsApplications

Education MarketEducation Market

2Presentation_ID © 2000, Cisco Systems, Inc.

AgendaAgenda

• Educational Trends

• Scenarios

• Interoperability


EducationEducation

• Tie schools together for internet

• Connect remote classrooms (trailers) to main building

• Provide portable network connection to students

• Provide networks in old buildings



ScenariosScenarios


School DistrictSchool DistrictMetropolitan Area NetworkMetropolitan Area Network


Remote ClassroomsRemote Classrooms

Main Building

Trailers

• Connect Classrooms quickly easily

• Provide Network, IP phone, without additional wiring.


Wireless ClassroomWireless Classroom

Maximum CoverageAutorate Negotiation

Wireless for StudentsDiPole Antennas

Class 1 Class 3

Class 1

Hallway

2000’

850’

Class 4 Class 5 Class 5 Class 6 Class 7Class 2

Class 8 Class 10 Class 11 Class 12 Class 13Class 9

AP’s on Isolated LAN with PIX

1

1 6 11 1

6 11 1


Wireless Classroom Wireless Classroom (mobile carts)(mobile carts)

• Mobility: Allows teachers to have internet access anywhere Within the school

• Cost: A dedicated computer room is not needed for internet access.


Outdoor CoverageOutdoor Coverage

Maximum CoverageAutorate Negotiation

Wireless for StudentsDiPole Indoor, Patch Outdoor

Class 1 Class 3

Hallway

1000’

850’

Class 4Class 2

AP’s on Isolated LAN with PIX

Class 8 Class 10 Class 11Class 9

Building Courtyard

1000’

1 6

1 6

11

1


Campus Wide Wireless AccessCampus Wide Wireless Access

Greenville College

Indoor Access withinall buildings on campus

Outdoor Access throughoutthe campus grounds



K-12 Wireless NetworkingK-12 Wireless Networking

Jeffry A. Spain, CCNAJeffry A. Spain, CCNA

Network AdministratorNetwork Administrator

Cincinnati Country Day SchoolCincinnati Country Day School


CCDS DemographicsCCDS Demographics

• Independent school in suburban Cincinnati

• 900 students, pre-K through grade 12

• Technology program that integrates laptop use in all areas of the curriculum

• 675 laptop computers

All faculty and all students in grades 5-12

• Cisco-based campus-wide internetwork


Classroom Network AccessClassroom Network Access

• Requirements for spontaneous use, changing furniture arrangements, and user mobility

• Requirement for good network performance based on applications in use

• Severe cost/performance/convenience issues with wireless prior to 11-Mbps DSSS


Aironet Design ConsiderationsAironet Design Considerations

• Wireless products in general meet classroom flexibility requirements

• Access points laid out to minimize number of users per access point

50 Aironet access points (all diversity antennae)

One per classroom

Others sufficient to cover common areas


11-Mbps DSSS Performance11-Mbps DSSS Performance

• 11-Mbps DSSS provides good performance in a classroom environment

• Cisco Aironet fastest of wireless products tested on isolated data links

• See: http://support.countryday.net/wireless/performance

10Base-T Full Duplex

9.45 Mbps

Cisco Aironet 5.67 Mbps

Lucent WaveLAN 4.93 Mbps

3Com AirConnect 3.79 Mbps


Operational ExperienceOperational Experience

• No performance or coverage complaints

Install Microsoft Office 2000 over wireless

• Fragility of gray plastic antenna cover

Anticipate wireless cards built into laptops

• Occasional access point lockup

Seems to be related to users in marginal coverage areas

Requires power cycling the access point



InteroperabilityInteroperability

Third Party DevicesThird Party Devices


IEEE 802.11 ComplianceIEEE 802.11 ComplianceOffers You…Offers You…

• A very high-performance WLAN system

Efficient MAC and high-quality radio

802.11 products perform better thanproprietary systems

Client interoperability

• WEP standard privacy and authentication

• Standards-based migration path for system growth


WI-FI CertificationWI-FI Certification

• WECA certifies Interoperability between products.

• This provides assurance to customers of migration and integration options.

• Cisco is a founding member of WECA.

• Certified products can be found at www.wi-fi.com


Education CustomersEducation Customers

1 © 2000, cisco systems, inc. course number presentation_id 802.11 wireless applications education...

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