Aruba at HiST
Presentation for colleagues in Uninett-land
30.10.2013
Arnt Richard Rørvik, SPO/ICT, head of
Development of ICT-services in HiST.
Welcome!
The following material is a small presentation of wireless at HiST,
the University College of Sor-Trondelag, Trondheim.
First a small – and very Norwegian – greeting :-)
http://www.youtube.com/watch?v=K83J_Oyc8sw
The opinions expressed in these PP-slides are those of the author; and may or may not represent official
HiST views and strategies.
1.0 (2007/2008-2010)
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Objectives:
Focusing on robust high-capacity wireless anywhere
Reducing number of eSSID’s: hist-guest and eduroam
Defining classes of service:
– User groups, access control, QoS, services, security
restrictions.
– Goal defined, mechanisms limited per 2007:
• Nettwork level, vlan overrides, packet filters
• Pervasive computing – same services anywhere
• Ease of use
• Single sign on
1.0 (2007/2008-2010)
• Mål og føringer
– Implementeringen av «HiST nye trådløsnett 2007» markerer
starten på oppbyggingen av et moderne og funksjonelt trådløsnett
i HiST med god dekning, funksjonalitet og sikkerhet.
• Mandat for prosjekt
– (…) innføre et moderne, funksjonelt og sikkert trådløsnett for HiST
som støtter alle aktuelle tjenester for ansatte og studenter.
– (…) oppsett av klientutstyr.
– … legge fram en plan for videreutvikling av systemet i perioden
2008-2010 (fase II).
– Arbeidet skjer i samråd med UNINETT (…)
1.0 (2007/2008)
• Mål og føringer
• Implementeringen av «HiST nye trådløsnett 2007» markerer
starten på oppbyggingen av et moderne og funksjonelt
trådløsnett i HiST med god dekning, funksjonalitet og sikkerhet.
• Mandat for prosjekt
– Bidra til å innføre et moderne, funksjonelt og sikkert trådløsnett for
HiST som støtter alle aktuelle tjenester for ansatte og studenter.
– Foreslå nødvendig teknisk spesifikasjon og detaljering, samt
forberede innkjøp under bruk av rammeavtaler innen vedtatt
budsjettramme og slik at funksjonalitet og sikkerhet ivaretas på en
god måte.
– Utføre installasjon og teknisk tilpasning.
– Bistå i etableringen av nødvendig drifting av systemet og støttetjenester så som samarbeide med Brukersenteret om oppsett av
klientutstyr.
1.0
• Coverage:
– 100% for portable computers- Pc, Mac, indoor
– High aggregate bandwidth in high usage areas
(auditoriums etc.)
• In the forefront in terms of 802.11n: Cisco Aironet 1252, late 2008.
• Working!
– Extra cabling (not in use), or planned cabling for
increased density and coverage
– Outdoor coverage between buildings
1.0
• Policy: Decommissioning old radio technology as quickly
as possible
– Turning off 802.11b – consuming airtime from g/n
• Restricting the use of unauthorised APs
• Additional reguirements: Hosting in-house alien venues
– Reducing interference within premises
1.0
• Radiation & health: Policy vs. employees
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Important aspect. Corporate responsibility.
Recent research (R. Oftedal)
Norms: ICNIRP, PTT, other gov. institutions
Psychology:
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Hidden APs (but losing some signal strength)
No Aps in offices
Distance important – Aps of little significance with HiST’s placement of APs
Employees own use of devices most significant – distance to antennas.
Cellulars – much more powerful
Antenna placement and distance important
• Cisco Wism (1) and Cisco Aironet 1252 implementation
– Tricky getting all kinds of equipment online with stable connections
Agenda
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2.0 (2012/13)
1. Updated ambitions:
1. Increased use of wireless among students
1. Office 365/ Lync Online, multimedia, small videos etc.
2. Requirements of employees
2. Means for an end:
1. New buildings – even higher density
2. 802.11ac – right time to og for it?
2.0 (2010-2015)
• We have Cisco, would we need anything else?
• Price competition with certain performance demands –
– Uninett-facilitated
– Aruba won
– But how often is it practical to change vendor? Transition costs
etc.?
• eduroam «basic»
– Quick and simple job - «do it yourself»
2.0
• eduroam «full package»
– Airwave, Clear Pass Policy Manager (CPPM)
– Major job, including guest module
• Deployment example: HHiT
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65 dBm requirement
HHiT 10000 m2., 125 APs, => 78 m2/AP. -> ca. 8,8 m. between each AP
• Directional antennas (combi 2.4/5 GHz Aruba) in auditoriums
– HHiT
– Dividing into sectors
• «Over-head antennas»
• Antennas under the seat – not in compliance with company policy
• Beamshaping
– ClientMatch etc.
• Better client control
2.0
• Why 802.11ac for HiST?
• Planning for even higher wifi demand
– Demands rocketing. Lync Online/onsite a major driver.
• 802.11ac a superior standard
– Patching many standard flaws of 802.11g/n (and earlier)
– 5 GHz with increased reach (standardizing beamforming more)
and shorter airtime
– Standardized support for directing clients, power consumed etc.
2.0
• New buildings: Planned from ground-up «cable-wise»
• Planning using VisualRF
– Pretty much a solid performer, 3D (floor above/underneath)
• Cabling & mounting a fixed cost
– => Low when doing it up-front/when buildings built
– => Tearing down equipment and replacing APs just a few years
later is expensive
– => Re-planning coverage is expensive (difficult to re-use cabling
unless doing an up-front coverage planning for AC)
– => Re-cabling is very expensive
• Hopefully, planning in Trådløst HiST 1.0 still useful for 2.0/AC.
2.0
• From now on, completing Trådløst HiST 2.0:
– 802.11ac on all new campuses
– Gradually replacing 802.11n, 400 APs in 2014.
– Considering «eduroam at home»
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Internet connection payed for by HiST
Require to use of a HiST Remote AP?
Prioritizing traffic of the HiST employee.
Offering eduroam to eduroam users in the vincinity.
Trådløst HiST 3.0?
More open
More secure
Simpler to use
With predictable capacity, growing in step with deman
2.0
• Airwave
– Running in VM (Vmware)
– Very simple to install & use
– VisualRF a good example; both monitoring & planning.
• Clear Pass Policy Manager
– Also virtualized (Vmware)
– Starring: «Guest module»
• Also appearing on the show: 802.11ac clients
• DEMO! (AT LAST) :-)