Wi-Fi: opportunities & deployments Frans Panken:

Which opportunities does Wi-Fi bring to the R&E community? 1.What are the technical possibilities, now and in the near future 2.What is currently deployed in the Netherlands? Interviews with 15 key people from the Dutch education and research community Web-survey among ICT-engineers of 35 Dutch education institutes Gives insight in: Infrastructure: # WLAN access points # WLAN controllers Time spending Wi-Fi institutes Reasons for Wi-Fi capacity problems Opportunities: map 1 and 2 on one another

Trends Trends in Wi-Fi Solutions for small cells / high-density access points New * flavors: ac (5Ghz; 1Gbit/s) ad (60Ghz; 7 Gbit/s) ah (sub 1Ghz), af (white spaces) u (Passpoint / Hotspot 2.0): network discovery, authentication Controller-less solutions Automatic Network Discovery and Selection Function (ANDSF) Carrier-grade controllers (6000+ access points) New ways of learning Services run in the cloud, data is stored in the cloud Bring your own device Any place, any where, any time Which opportunities does this bring for research and education?

Wi-Fi deployment at Dutch institutes 4

Fixed vs wireless connected end-points

Time spending Wi-Fi experts

Primary reason for Wi-Fi capacity problems 1.Poor network / radio planning 2.Old access points / not enough access points 3.Movements of people / rooms

Primary reason for Wi-Fi capacity problems

Primary demands while troubleshooting

Detect and separate infected clients?

Do you need a Wi-Fi installer?

Deployment costs of an indoor Wi-Fi AP (Source: Analysys Mason, 2011) Plan, pre-plan, install, commission Project management Backhaul Installation Hardware Costs (EUR)

In summary Movement towards cloud services: impact on the campus networks Intelligent campus networks (local/own services, data centers,…) Campus network functions as an access network to SURFnet Wi-Fi = new Ethernet Wi-Fi is no longer a luxury but has become a necessity Local start with few AP’s -> towards a solution commonly used ‘Movements’ and access points are main reasons for Wi-Fi capacity problems Sharing of Wi-Fi resources reduces costs High capacity carrier grade WLAN controllers available Sharing of troubleshooting facilities? Institutes for vocational education start with Wi-Fi deployment

Conclusions – next steps 1.Sharing of WLAN resources: centralized WLAN controller Access points register themselves to the centralized controller automatically? Central management solution, accessible by each institute separately? Local breakout option for data? Part of the ‘any place, any where any time’ network vision…? Increase eduroam footprint in the future: Integrated with Radius server to ease installation and deployment of eduroam Can serve as a base to realize ‘federation as a service’ 1.Sharing of helpdesk facilities? 1.Sharing facilities of configuration tips/errors/deployment/…

Questions..? 16

What is the main barrier for an NREN to offer shared Wi-Fi backend? 1.NREN has no role on the campus 2.NRENs cannot deal with end-users 3.Too many technical challenges 4.Requires huge investment 5.Other / I don’t know

Backup slides

Secondary reason WI-Fi capacity problems

Main advantages of eduroam

Main disadvantages of eduroam