Hi, thanks for the draft. I am happy you wrote and published it.
I am looking forward for a packet capture from a live cellular network
that illustrates this outer packet header format described in the draft.
In particular, the Source and Destination IPv6 addresses (not IPv4).
I can suppose that the two addresses would have same prefix, because
that would be a point-to-point link and these links would have same
prefix. (i.e. if the src is 2001:db8:1:1::1 then dst would be
2001:db8:1:1::2 and not 2001:db8:1:2::1).
This is only supposition from my side, because I have never seen a
packet capture of this.
3.5. Packet Format
Figure 4 shows a packet format example of GTP-U over IPv6 that
carries an extension header for QFI and an IPv6 PDU. All values in
the example are illustration purpose only. The encoding of PDU
Session Container for QFI refers to [TS.38.415-3GPP].
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
Outer IPv6 Header
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|Version| DSCP=EF | Flow Label |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Payload Length | NxtHdr=17(UDP)| Hop Limit |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Source IPv6 Address +
| 2001:db8:1:1::1 |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
+ +
| |
+ Destination IPv6 Address +
| 2001:db8:1:2::1 |
+ +
| |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Alex
Le 10/08/2018 à 11:24, Shunsuke Homma a écrit :
Hi DMM folks,
We reflected feedback from 3GPP CT4 on draft-hmm-dmm-5g-uplane-analysis
and uploaded the new version. We need more reviews from both IETF and
3GPP for further improvement. We will appreciate if you can give
comments or feedback to this I-D.
Best regards,
Shunsuke
-------- Forwarded Message --------
Subject: New Version Notification for
draft-hmm-dmm-5g-uplane-analysis-01.txt
Date: Fri, 10 Aug 2018 01:44:20 -0700
From: internet-dra...@ietf.org
To: daniel.vo...@bell.ca <daniel.vo...@bell.ca>, Daniel Voyer
<daniel.vo...@bell.ca>, Takuya Miyasaka <ta-miyas...@kddi-research.jp>,
Satoru Matsushima <satoru.matsush...@g.softbank.co.jp>, Shunsuke Homma
<homma.shuns...@lab.ntt.co.jp>
A new version of I-D, draft-hmm-dmm-5g-uplane-analysis-01.txt
has been successfully submitted by Shunsuke Homma and posted to the
IETF repository.
Name: draft-hmm-dmm-5g-uplane-analysis
Revision: 01
Title: User Plane Protocol and Architectural Analysis on 3GPP 5G
System
Document date: 2018-08-10
Group: Individual Submission
Pages: 30
URL:
https://www.ietf.org/internet-drafts/draft-hmm-dmm-5g-uplane-analysis-01.txt
Status: https://datatracker.ietf.org/doc/draft-hmm-dmm-5g-uplane-analysis/
Htmlized: https://tools.ietf.org/html/draft-hmm-dmm-5g-uplane-analysis-01
Htmlized:
https://datatracker.ietf.org/doc/html/draft-hmm-dmm-5g-uplane-analysis
Diff: https://www.ietf.org/rfcdiff?url2=draft-hmm-dmm-5g-uplane-analysis-01
Abstract:
This document analyzes the mobile user plane protocol and the
architecture specified in 3GPP 5G documents. The analysis work is to
clarify those specifications, extract protocol and architectural
requirements and derive evaluation aspects for user plane protocols
on IETF side. This work is corresponding to the User Plane Protocol
Study work on 3GPP side.
Please note that it may take a couple of minutes from the time of
submission
until the htmlized version and diff are available at tools.ietf.org.
The IETF Secretariat
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