From ArthurLRJ at outlook.com Tue Mar 19 06:55:36 2019 From: ArthurLRJ at outlook.com (ArthurLRJ at outlook.com) Date: Tue, 19 Mar 2019 06:55:36 +0000 Subject: Problem with the sgsnemu of OsmoGGSN Message-ID: Dear all I am facting the following problems and hope you can help me: - At present, I have two GGSN nodes(such as A and B), I also hava a sgsnemu node which is connected to GGSN-A and hold a PDP context, now I want to connect this PDP context to GGSN-B to simulate the handover of mobile devices between different base stations. How can I do it? - And I I wonder if sgsnemu can generate ?Update PDP Context Request? message. Thanks and regards Arthur -------------- next part -------------- An HTML attachment was scrubbed... URL: From pespin at sysmocom.de Tue Mar 19 15:46:38 2019 From: pespin at sysmocom.de (Pau Espin Pedrol) Date: Tue, 19 Mar 2019 16:46:38 +0100 Subject: Problem with the sgsnemu of OsmoGGSN In-Reply-To: References: Message-ID: Hi, as far as I know none of osmo-ggsn, osmo-sgsn and sgsnemu support this handover capability nowadays, at least I don't recall hacing ever used it. Patches welcome! Kind Regards, Pau -- - Pau Espin Pedrol http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Director: Harald Welte From lavrukhin.andrey at gmail.com Tue Mar 26 14:59:19 2019 From: lavrukhin.andrey at gmail.com (Andrey Lavrukhin) Date: Tue, 26 Mar 2019 16:59:19 +0200 Subject: [OSMO_PCU] EGPRS Message-ID: Hi Now I'm trying osmo-pcu on octasic-phy. GPRS worked, but I want to get EGPRS. I set 'gprs mode none' in openbsc.cfg and 'egprs only' in osmo-pcu.cfg. And got next error: "Not accepting non-EGPRS phone in EGPRS-only mode". As I found, it is like bug #3499. What does this error depend on and how can it be fixed? How can I test EGPRS? Thanks, Andrey Lavrukhin -------------- next part -------------- An HTML attachment was scrubbed... URL: From msuraev at sysmocom.de Tue Mar 26 15:07:23 2019 From: msuraev at sysmocom.de (Max) Date: Tue, 26 Mar 2019 16:07:23 +0100 Subject: [OSMO_PCU] EGPRS In-Reply-To: References: Message-ID: You've got to use 'gprs mode egprs' because 'none' means disable support for all kinds of packet data. 26.03.19 15:59, Andrey Lavrukhin ?????: > I set 'gprs mode none' in openbsc.cfg and 'egprs only' in osmo-pcu.cfg. -- - Max Suraev http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Directors: Harald Welte From msuraev at sysmocom.de Tue Mar 26 15:27:32 2019 From: msuraev at sysmocom.de (Max) Date: Tue, 26 Mar 2019 16:27:32 +0100 Subject: [OSMO_PCU] EGPRS In-Reply-To: References: Message-ID: <7faee597-412a-ebcd-5e60-f647d0d2a230@sysmocom.de> Hi. I hadn't hit this error yet - which phone are you using? Would be nice if you could update https://osmocom.org/issues/3499 with more details: config, packet traces, software version, log output etc. Also, is there any particular reason you use OpenBSC and not OsmoBSC? If it's only meant for PS setup than migration should be much simpler compared to Voice/SMS case. Having said that, if the reason is indeed https://osmocom.org/issues/1525 than it might take a while until somebody allocates resources to fix it. Nevertheless, having as much details as possible documented in the ticket increase the chances that the error gets reproduced and eventually fixed. -- - Max Suraev http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Directors: Harald Welte From laforge at gnumonks.org Thu Mar 28 12:55:49 2019 From: laforge at gnumonks.org (Harald Welte) Date: Thu, 28 Mar 2019 13:55:49 +0100 Subject: Problem with the sgsnemu of OsmoGGSN In-Reply-To: References: Message-ID: <20190328125549.GJ15277@nataraja> Dear Arthur, On Tue, Mar 19, 2019 at 06:55:36AM +0000, ArthurLRJ at outlook.com wrote: > I am facting the following problems and hope you can help me: > > - At present, I have two GGSN nodes(such as A and B), I also hava a sgsnemu node which is connected to GGSN-A and hold a PDP context, now I want to connect this PDP context to GGSN-B to simulate the handover of mobile devices between different base stations. How can I do it? I'm sorry, but sgsnemu doesn't implement this functionality. It, as well as the shared libgtp library that's used by sgsnemu and osmo-ggsn are also not very well suited for this purpose. libgtp is implemented to implement *one* SGSN or *one* GGSN node. However, in your situation you actually would want to implement *two* SGSNs and then move context from one simulated SGSN to another. > - And I I wonder if sgsnemu can generate ?Update PDP Context Request? message. I don't think so, sorry. IT would have to be extended, if needed. sgsnemu is a small hackish tool that was primariliy used in earlier days for manual testing of OpenGGSN (which later became OsmoGGSN). These days, in the Osmocom project, we mainly use test suites written in TTCN-3 to test our implementations. The capabilities of TTCN-3 and the Eclipse TITAN toolchan far outpower the capabilitis of hand-written tools like sgsnemu. So our focus is more on extending the TTCN-3 test coverage than to extend sgsnemu's capabilities. You can find our current test suite for the GGSN at http://git.osmocom.org/osmo-ttcn3-hacks/tree/ggsn_tests/GGSN_Tests.ttcn The tests unfortunately also don't yet include tests for migration of a subscriber from one SGSN to another, but it would really be great to see any developments in this area. One option would be to extend this test suite to include the test cases/scenarios you require. The advantage of implementing tests as part of this test suite is that the tests can be fully automatized. They will be executed automatically against OsmoGGSN and ensure no regressions will go unnoticed. Of course, the tests could also be ran against other GGSN implementations. Regards, Harald -- - Harald Welte http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6) From laforge at gnumonks.org Thu Mar 28 12:58:31 2019 From: laforge at gnumonks.org (Harald Welte) Date: Thu, 28 Mar 2019 13:58:31 +0100 Subject: [OSMO_PCU] EGPRS In-Reply-To: References: Message-ID: <20190328125831.GK15277@nataraja> Hi Andrey, in general, as Max stated, you have to use 'gprs mode egprs' if you want EGPRS. OsmoPCU implements only either GPRS or EGPRS. So as soon as you activate EGPRS, you cannot use GPRS-only phones anymore. All your phones have to support EGPRS or will not be able to use PS services. Free Software lives by contributions, and OsmoPCU is unfortunately not receiving many. Please feel free to join our project and help us with contributing the features that you need. Thanks :) Regards, Harald -- - Harald Welte http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)