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Support #3920

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PCAPs files of 3G PS for Osmocom network and Commercial one

Added by efistokl over 2 years ago. Updated over 2 years ago.

Status:
In Progress
Priority:
Normal
Assignee:
-
Category:
Iu interface
Target version:
-
Start date:
04/12/2019
Due date:
% Done:

0%

Spec Reference:
Tags:
3G

Description

In iphone-6s-q.pcap - commercial software, trace taken on 10.0.2.195:
(around between 10:22:44 and 10:23:17 I didn't have internet, maybe temporary fail of the system to respond to the packet 10754. All other time the data was working)
10.0.2.199 - nano3g ip.access S8
10.0.2.195 - (not osmocom) core network (without HLR and GGSN)
10.0.1.123 or 192.168.14.16 (same host) - GGSN and HLR

In iphone-6s-osmocom.pcap - osmocom based system. Data stopped working around 10:05:59 (time in the trace, or packet 3727), trace taken on 10.0.2.51:
10.0.2.52 - nano3g ip.access S8
10.0.2.51 - osmocom host (without HLR and GGSN)
10.0.1.123 or 192.168.14.16 (same host) - GGSN
172.48.1.5 - HLR

At first glance it seems that Osmo-SGSN doesn't respond properly to (GMM) Service Requests which come some time after initial PS activation. I haven't inspected the traces thoroughly yet.


Files

iphone-6s-osmocom.pcap iphone-6s-osmocom.pcap 2.08 MB efistokl, 04/12/2019 12:28 PM
iphone-6s-q.pcap iphone-6s-q.pcap 6.31 MB efistokl, 04/12/2019 12:28 PM
sgsn-10.0.3.19.logs.txt sgsn-10.0.3.19.logs.txt 115 KB efistokl, 04/15/2019 01:12 PM
iphone-6s-osmocom-10.0.3.19.pcap iphone-6s-osmocom-10.0.3.19.pcap 1.26 MB efistokl, 04/15/2019 01:12 PM
after-patch-gerrit-13654.zip after-patch-gerrit-13654.zip 925 KB Traces taken with SGSN version: https://gerrit.osmocom.org/#/c/osmo-sgsn/+/13654/ efistokl, 04/16/2019 05:46 PM
experiment-thu-18-4-19.zip experiment-thu-18-4-19.zip 594 KB efistokl, 04/18/2019 11:41 AM
experiment-thu-18-4-19-2.zip experiment-thu-18-4-19-2.zip 1.29 MB efistokl, 04/18/2019 02:01 PM

Related issues

Related to OsmoSGSN - Bug #1977: 3G IuPS is unreliableClosedlynxis03/09/2017

Actions
Related to OsmoSGSN - Bug #3936: Iu: first GMM Service Request does not find a MM ctxNew04/16/2019

Actions
Related to OsmoSGSN - Bug #3923: Iu: Respond to SecurityCommandReject messagesNew04/14/2019

Actions
Related to OsmoSGSN - Bug #3937: Iu: verify handling of GMM Service Request (data)when no PDP Context present.In Progress04/16/2019

Actions
Related to OsmoSGSN - Bug #3922: Iu: send RANAP CommonID to known connectionClosed04/13/2019

Actions
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