Re: [Stackevo-discuss] [5gangip] [gaia] 5G: It's the Network, Stupid

DIEGO LOPEZ GARCIA <diego.r.lopez@telefonica.com> Sat, 02 January 2016 22:40 UTC

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From: DIEGO LOPEZ GARCIA <diego.r.lopez@telefonica.com>
To: Dirk Kutscher <Dirk.Kutscher@neclab.eu>
Thread-Topic: [5gangip] [gaia] [Stackevo-discuss] 5G: It's the Network, Stupid
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Subject: Re: [Stackevo-discuss] [5gangip] [gaia] 5G: It's the Network, Stupid
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In a world of clouds the concept of E2E security becomes somehow cloudy, if you allow me the easy pun. At least at the provider clouds I see many of those trusted middleboxes now…

Be goode,

On 17 Dec 2015, at 11:10 , Dirk Kutscher <Dirk.Kutscher@neclab.eu<mailto:Dirk.Kutscher@neclab.eu>> wrote:

Regarding security, unless we want to introduce “trusted middleboxes”,

Why not?

No e2e security.

That may be OK for some use cases, like IoT or home GWs, but could be less convincing for accessing public network services -- for example, if you extend the network with multiple hops of device-to-device communication, data mules etc.

Dirk



object encryption and authentication seems to be the way. Of course there are
other challenges for that, too – key management for example.

--
Dirk

From: crowcroft@gmail.com<mailto:crowcroft@gmail.com> [mailto:crowcroft@gmail.com] On Behalf Of Jon
Crowcroft
Sent: Donnerstag, 17. Dezember 2015 08:57
To: Dirk Kutscher
Cc: dtn-interest@irtf.org<mailto:dtn-interest@irtf.org>; stackevo-discuss@iab.org<mailto:stackevo-discuss@iab.org>; icnrg@irtf.org<mailto:icnrg@irtf.org>; gaia;
marnew@iab.org<mailto:marnew@iab.org>; 5gangip@ietf.org<mailto:5gangip@ietf.org>
Subject: Re: [gaia] 5G: It's the Network, Stupid

Great article...one thing about the 4g..5g evolution is increasing cooperation
in forwarding and relaying signal, bits, packets (shared cell tower/base
station/antennae across provider). So direct,mesh,adhoc stop just being edge
notions, but are all first class part of the architecture ("don't fear the edge").
There is huge tension between this trend, and e2e security....I have not seen
anyone address how to resolve that tension...

On 16 Dec 2015 6:42 pm, "Dirk Kutscher" <Dirk.Kutscher@neclab.eu<mailto:Dirk.Kutscher@neclab.eu>> wrote:
[apologies for cross-posting]

Hi,

I have written up a few thoughts on current discussions around 5G and
network evolution. I might publish this as paper later, but wanted to get it out
early and ask for comments – so would be grateful for any feedback. It’s not
very polished and slightly long, but hopefully understandable enough. Take it as
a “position paper” for now.

Abstract:
Current 5G network discussion are often focusing on providing more
comprehensive and integrated orchestration and management functions in
order to improve “end-to-end” managebility and programmability, derived from
NGMN and similar requirements. While these are important challenges, this
memo takes the perspective that in order to arrive at a more powerful network,
it is important to understand the pain points and the reasons for certain design
choices of today’s networks. Understanding the drivers for traffic management
systems, middleboxes, CDNs and other application-layer overlays should be
taken as a basis for analyzing 5G uses cases and their requirements. In this
memo, I am making the point that many of today’s business needs and the
ambitious 5G use cases do call for a more powerful data forwarding plane,
taking ICN as an example. Features of such a forwarding plane would include
better support for heterogeneous networks (access networks and whole
network deployments), multi-path communication, in-network storage and
implementation of operator policies. This would help to avoid overlay silos and
finally simplify network management.

http://dirk-kutscher.info/posts/5g-its-the-network-stupid/

Thanks,
Dirk


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--
"Esta vez no fallaremos, Doctor Infierno"

Dr Diego R. Lopez
Telefonica I+D
http://people.tid.es/diego.lopez/

e-mail: diego.r.lopez@telefonica.com
Tel:    +34 913 129 041
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