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Re: [Ideas] [5gangip] FW: New Version Notification for draft-xyx-5gip-ps-00.txt

Uma Chunduri <uma.chunduri@huawei.com> Thu, 11 May 2017 00:10 UTC

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From: Uma Chunduri <uma.chunduri@huawei.com>
To: Tom Herbert <tom@herbertland.com>
CC: Behcet Sarikaya <sarikaya@ieee.org>, Lorenzo Colitti <lorenzo@google.com>, "5gangip@ietf.org" <5gangip@ietf.org>, "Dirk.von-Hugo@telekom.de" <Dirk.von-Hugo@telekom.de>, "ideas@ietf.org" <ideas@ietf.org>
Thread-Topic: [5gangip] FW: New Version Notification for draft-xyx-5gip-ps-00.txt
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Date: Thu, 11 May 2017 00:10:39 +0000
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Subject: Re: [Ideas] [5gangip] FW: New Version Notification for draft-xyx-5gip-ps-00.txt
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+ IDEAS

https://tools.ietf.org/html/draft-padma-ideas-use-cases-00 

Section 7 covers this use case - I saw you are part of this (may be this use case didn't come from you)

This is being worked out  and solution would be put forth soon..


--
Uma C.


-----Original Message-----
From: Tom Herbert [mailto:tom@herbertland.com] 
Sent: Wednesday, May 10, 2017 5:00 PM
To: Uma Chunduri <uma.chunduri@huawei.com>
Cc: Behcet Sarikaya <sarikaya@ieee.org>; Lorenzo Colitti <lorenzo@google.com>; 5gangip@ietf.org; Dirk.von-Hugo@telekom.de
Subject: Re: [5gangip] FW: New Version Notification for draft-xyx-5gip-ps-00.txt

On Wed, May 10, 2017 at 4:47 PM, Uma Chunduri <uma.chunduri@huawei.com> wrote:
>
>         >No, the source address does not change, TCP connections don't break.
>
> Source address can change if UE moves from UPF serving area.
> But, now I see your case is (R)AN mobility case (same UPF serving area).
>
>         >Please see my example I posted previously. Overlay networks (tunnels) are used between EnodeBs and gateways.
>                 >A distributed mapping service is run that these nodes share, so the Internet can communicate with mobile hosts and mobile hosts can communicate between themselves.
>                >This method is transparent to hosts including UEs and there are no changes need to transport layer. It's a fairly straightforward use of tunneling once an efficient mapping system is in place.
>
> I get that.
>
> Then this is may be good for 4G, but I guess we are talking about 5G here and I assumes PGW/UPF mobility and hence the Source IP address change is considered in your solution.
>
In that case the TCP connection would break regardless. Transport layer mobility, like QUIC, might then be solution.

> --
> Uma C.
>

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