Re: [5gangip] To initiate user-plane study work in 3GPP

[Alexandre Petrescu <[e-mail]>]

Le 17/10/2017 à 23:15, [e-mail] a écrit :
> Bob
> 
> This is the key statement for me:
> 
> “A study group would have to work out what services GTP provides”
> 
> Both in this group and related efforts (e.g. IDEAS at IETF, NGP at 
> ETSI), we need to consider how it is that mobile networks are built.
> 
> In terms of P2P, traffic on today’s mobile networks is predominantly 
> anchored at a central point, not P2P despite the associated engineering 
> inefficiencies.   There are very good reasons for this:
> 
>   * It makes LI very easy to implement
>   * It makes association of traffic with user clear allowing simple
>     billing mechanisms
>   * Mobility events are handled quickly and with minimal packet loss
> 
> In terms of the major use-cases today (voice over LTE and mobile 
> broadband) as they move to 5G, I really don’t see any need to change the 
> underlying tunnelling protocol because It Works.

It works, but does it scale to IPv6 size?

Alex

> 
> However, for NEW 5G use-cases such as Ultra-Low Latency and edge-based 
> services we should be considering whether GTP is the correct choice 
> provided we can meet the commercial and regulatory requirements of the 
> MNOs in terms of LI and charging.
> 
> David
> 
> *From:*5gangip [mailto:[e-mail]] *On Behalf Of *Robert 
> Moskowitz
> *Sent:* 17 October 2017 05:52
> *To:* [e-mail]; Satoru Matsushima <[e-mail]>
> *Cc:* [e-mail]
> *Subject:* Re: [5gangip] To initiate user-plane study work in 3GPP
> 
> Behcet and Satoru,
> 
> Last year I did a study of GTPv1U and worked out a different approach 
> that would better support P2P communications without the need of a home 
> proxy agent.  You can see part of it in:
> 
> draft-moskowitz-hip-ipnhip-02.txt
> 
> But I learned that there is tremendous resistance to any change away 
> from GTP, even a partial change.  A study group would have to work out 
> what services GTP provides.  Which services it does well and which it 
> does poorly.  Then how to better meet the service needs today and going 
> forward.
> 
> Bob
> 
> On 10/16/2017 04:12 PM, Behcet Sarikaya wrote:
> 
>     Hi Satoru,
> 
>     Thanks for the info.
> 
>     Can you please explain the objective items in your WID?
> 
>     It seems like according to TR 29.891 that you mentioned, Release 15
>     user plane protocol is GTPv1U and control plane protocol for SBA is
>     HTTP.
> 
>     Regards,
> 
>     Behcet
> 
>     On Mon, Oct 16, 2017 at 4:13 AM, Satoru Matsushima
>     <[e-mail] <mailto:[e-mail]>>
>     wrote:
> 
>         FYI. I’d submit a contribution to propose a new study item which
>         is to initiate user-plane protocol study work in 3GPP CT4 WG.
> 
>         http://www.3gpp.org/ftp/tsg_ct/WG4_protocollars_ex-CN4/TSGCT4_80_Kochi/Docs/C4-175098.zip
> 
>         Please take a look at the doc from above link. I'd appreciate
>         any your support if you think it makes sense.
> 
>         Cheers,
>         --satoru
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> 
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