learning with chromebooks: well prepared network infrastructure
TRANSCRIPT
Learning with Chromebooks Infrastructure Solution – Maximizing Learning ROI with a Well Prepared Network Infrastructure
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Is My Network Infrastructure Ready?
Scale the network to support more devicesDedicated Internet Access (DIA) Several factors influence DIA considerations including use case
(accessing content online, etc.) Google recommends .2 to .5 Mbps per concurrent session at a
minimum for general web browsing and editing Google Drive documents*
WAN connections and equipment Adequate bandwidth from site to DIA
Wireless infrastructure Expect each user to have an average of 2 devices to support Best practice is to support ~25 devices/radio Shift from coverage to capacity
Every active user on a network has a cumulative effect on the bandwidth
usage
Laptop
Chromebook
Convertible
Successful Chromebook deployments depend on sufficient network infrastructure and bandwidth to maximize learning ROI.
*https://support.google.com/chrome/a/answer/3339263?hl=en
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Develop and Implement Your Deployment PlanDefine your usage model Define your Chrome Use Case Implement for your Use Case
Supporting a hybrid Windows/Chrome environment will influence usage model and use case considerations
Google Apps For Education GAFE + Online content, services and
applications access such as LMS, CMS, etc.
Implement your solution elements to support your Usage Model and Use Case
Shared Hybrid Shared/1:1 Windows/
Chrome
1:1
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Spectrum of Usage Models
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Shared Device Model Chrome supports shared models
well – all data is stored in the cloud as opposed to locally
Devices shared amongst many classes which can create contention
Devices typically remain on premise at all times in carts, cabinets, etc. thereby excluding other off premise learning activities
1:1 Model Users are assigned a device Anytime/Anywhere eLearning Supports learning models such as
flipped classroom, etc. that are unsupportable in a shared model
Provides maximum degree of flexibility for all learning models
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Spectrum of Usage Models
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Usage Model – Windows Devices for Teachers/Admins
Teacher/Admin Devices may require: More offline capabilities Traditional Windows applications Support for all usage models and use cases Simplified authentication for greater ease of use
and manageability Access to many of the same features, apps
and extensions with a Chrome browser on the Windows teacher/admin device
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Supporting new or existing Windows devices
in the same environment
Tablets/Detachable
Laptop
Convertible
Laptop
LaptopConvertible
Use Case – Accessing Additional Content and Services Online
Additional Access: Access to additional online
services, content and applications has a cumulative effect on bandwidth consumption
Active User * SUM[GAFE + LMS + CMS + Video]
Google Apps Access LMS CMS Video Content
Bandwidth Consumed
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Solution BlueprintBasic Architecture
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Is this a chromebook in photo?
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Overview of the Path to the Cloud
High level overview of the points along the path to consider: Dedicated Internet Access DIA Security– Firewall/Gateway– Content filter
Wide Area Network– Fiber, MPLS, etc.– Routers– Switches
Wireless Infrastructure
FirewallContent Filter
Infrastructure (WAN, LAN, switches, routers, etc.)
Building Out the Path to the Cloud
Aggregate traffic from all the devices at all of the schools begins to converge at the backbone and progresses along the path out to the Google cloud.
Google Admin Console
LMS
GAFEDocs | Sheets | Slides
FirewallContent Filter
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Infrastructure (WAN, LAN, switches, routers, etc.)
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Diving Deeper to the School Level
The edge of the network has a significant role in providing adequate support for the number of devices. Coverage may have been the primary
consideration for access point deployment topology.
One access point for every 4 classrooms may offer sufficient coverage for a cart of devices that is shared amongst those rooms
Devices move from room to room
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Solution BlueprintFull Deployment
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Adding Devices to the Infrastructure
Points along the path to consider: Dedicated Internet Access and Wide
Area Network - Calculate required bandwidth by use case and number of clients and increase as necessary
DIA Security and Content Filter - Ensure adequately sized for increased traffic
Wireless Infrastructure - Shift from coverage to capacity
Google Admin Console
LMS
GAFEDocs | Sheets | Slides
Infrastructure (WAN, LAN, switches, routers, etc.)
Firewall
Content Filter
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Diving Deeper to the School Level
The access point topology changes as we increase the number of devices. Capacity versus coverage:– Capacity emerges as the primary
consideration– Best practice of ~25 device associations
per radio
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Full deployment
Optimized Path to the Cloud: Wireless coverage in schools Sufficient bandwidth in WAN and backbone
equipment Firewall/Gateway and Content Filter
appropriately sized Sufficient DIA bandwidth.
Google Admin Console
LMS
GAFEDocs | Sheets | Slides
CMS/LMS
Infrastructure (WAN, LAN, switches, routers, etc.)
Firewall
GAFE and other online access to content,
services and applications
Content Filter