4g update - terena.org · 4g update paul dekkers tf-mnm, october 14th, 2013. ... 4g switched aaa...
TRANSCRIPT
![Page 1: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/1.jpg)
4G update
Paul DekkersTF-MNM, October 14th, 2013
![Page 2: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/2.jpg)
4G update
• Experiences with 4G(no data-limit)
• Use-cases at SURFnet institutions
• Custom APN, options for connecting operator to NREN
• Future challenges
2
![Page 3: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/3.jpg)
NL operators aim for nationwide coverage
![Page 4: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/4.jpg)
Complexity has it’s implications
4
![Page 5: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/5.jpg)
Experiences: low latency, stability
0
7500
15000
22500
30000
0 600 1200 1800 2400
Treinreis, roamen van 4G naar 3G
5
late
ncy
(ms)
tijdsduur treinreis (s)
![Page 6: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/6.jpg)
Field tests
![Page 7: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/7.jpg)
Experiences: videoconferencing
![Page 8: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/8.jpg)
Experiences: videoconferencing
![Page 9: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/9.jpg)
Listening in on TF-Storage
![Page 10: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/10.jpg)
Videoconferencing everywhere...
![Page 11: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/11.jpg)
Lectures “from the field”
![Page 12: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/12.jpg)
Streaming media, hockey match
![Page 13: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/13.jpg)
Streaming media, hockey match
![Page 14: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/14.jpg)
Video consult, restricted data
![Page 15: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/15.jpg)
Group of IT students play with 4G
![Page 16: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/16.jpg)
non-video usecases ;-)
• Library, publishers access (limited to campus net),access geo-data, cartography on the streets (tablets)
• Uploading large photos as part of course
• M2M sport equipment, low-latency, fast feedback
• DoS sensitivity
• Journalists (video...)
• Challenges:- authentication- network connections- coverage
16
![Page 17: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/17.jpg)
Mobile eduroam hotspot(via SURFnet network)
![Page 18: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/18.jpg)
“Muziek op je mobiel”
![Page 19: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/19.jpg)
Work like you normally do?
![Page 20: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/20.jpg)
Focus on outdoors
Wi-Fi outdoors
LTE outdoors
higher latency, variations in speedresults vary indoors, depending onfrequencies used
goed for hotspots,range & scalability difficult
![Page 21: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/21.jpg)
WiFi indoors: no comparison
4G outdoors, to complement WiFi (off-campus)
![Page 22: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/22.jpg)
Access via/to the campus networks
SURFnet Visiting institute
AAA proxy AAA AAA
User DB
Internet
home institute
eduroam
SURFnet Mobile
operator
AAA AAA
User DB
Internet
home institute
4G routed
SURFnet Mobile
operator
AAA
User DB
Internet
home institute
4G switched AAA proxy
![Page 23: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/23.jpg)
Custom APN: why
23
• Direct and transparent connection to the campus- access campus-limited resources
(medical applications, video-conferencing/streaming: doventolk, ...)- alternative for VPN on mobile
(which doesn’t scale or work well)- seamless? integration with Wi-Fi- trusted authentication
- no EAP yet (but Release 9...)- buggy UE implementations (ESM, authentication, bearers)
- offloading (no NAT), cost-reduction? ... not 100% sure about economic advantages just yet
• Via Netherlighton 1 (2) central location from operator to NREN
![Page 24: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/24.jpg)
Custom APN
• Tested multiple APNs, one for each institution- Still a lot of work, for Operator, NREN and institution- Only routed traffic, limitations on mobile network- Virtual APN to do real APN selection based on authentication
• Working with L2TP, LNS run at SURFnet- Handset gets IP-adres from the LNS- LNS can do proxy-arp, thus assign addresses from layer 2- Assign LNS based on RADIUS authentication: user-based “VLANs”- Complexity (LNS, BGP, ...) is at NREN, not at institution- One virtual APN for all users, edu.nl
24
![Page 25: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/25.jpg)
![Page 26: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/26.jpg)
New stuff, old stuff
• Mobile core, a lot of components• L2TP, IPv6• RADIUS, Accounting, Packet of Disconnect
26
![Page 27: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/27.jpg)
Another development; EU roaming APN
27
• Preparation operators for EU roaming APN mandated by EU (goal: lower roaming fees)
• But operators don’t need to offer it
• Technically complicated, but closer to international local breakout! (eduroam-like APN?)(if only we could allow international SIMs on edu.nl ...)
• Interesting aspects (MCC/MVNO presentation later):Operator lock-in/flexibility, roaming agreements, ...
![Page 28: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/28.jpg)
Questions?paul.dekkers [at] surfnet.nl
![Page 29: 4G update - terena.org · 4G update Paul Dekkers TF-MNM, October 14th, 2013. ... 4G switched AAA proxy . Custom APN: why 23 • Direct and transparent connection to the campus - access](https://reader035.vdocuments.site/reader035/viewer/2022062415/5fc6ab9631c20d788a6ef124/html5/thumbnails/29.jpg)
• Guest accounts• Monitoring• Reduced load to NL proxies by using SQL
(ofcourse traffic remained the same ;-))
29