osmocom-net-gprs October 2016

osmocom-net-gprs@lists.osmocom.org

11 participants
14 discussions

Roaming allowed for using local sims
by Saba Arshad 20 Feb '17

20 Feb '17

Hello, I want to use the local sims having different MNC/MCC for implementing GPRS using osmocoms with OpenBTS same as I have used them for GSM calls and sms using only openBTS. But your site http://openbsc.osmocom.org/trac/wiki/OpenBSC_GPRS says, "it is currently not possible". As it is long when posted on this site so I want to ask is it possible *now* to use the local sims? Hope you have understood my question. Waiting for your reply. Thanks. Regards, Saba Arshad

2 1

Load balancing issue on Multi-TRX configuration
by Aravind Sirsikar 31 Oct '16

31 Oct '16

Hello All, We are testing GPRS/EGPRS functionality in Multi-TRX(2 TRX) configuration for 2MS and we observed that both the MS are always assigned resources in TRX0. It seems like there is no load balancing done Across the TRXs. Similar issue "Bug #1775 LC15: No PDCH allocation across two TRX" is raised on Multi-TRX and its status is "In Progress". Please let us know if any updates on this issue. Thanks and Regards, Aravind Sirsikar

3 2

Profiling data of decoding EPDAN compressed bitmap
by Prasad Kaup 29 Oct '16

29 Oct '16

Hello All, We have executed profiling test of two versions of algorithm for decoding compressed bitmap of EPDAN. >From the results , we see that performance is better in Tree based decoding (Version2 as given below ) Version 1: Bitmap based decoding as present in current master branch ( Function name osmo_t4_decode ) Version 2: Tree based decoding ( Function name decompress_crbb , as proposed in patch "Decompress the CRBB bitmap using tree based approach"<http://lists.osmocom.org/pipermail/osmocom-net-gprs/2016-March/000525.html> ) A sample bitmap taken from a real mobile log is used for the test. Host execution: Time taken to decode (micro seconds) Version 1: (Bitmap based decoding) : MIN -17 MAX -19 AVERAGE -17.9 Version 2 (tree based decoding): MIN -4 MAX -13 AVERAGE - 5.2 Target execution: Time taken to decode (micro seconds) Version 1: (Bitmap based decoding) : MIN -277 MAX -583 AVERAGE - 353 Version 2 (tree based decoding): MIN -67 MAX -86 AVERAGE - 69.8 Regards Prasad

4 17

GTP-U support for upstream Linux
by Ashish Kurian 29 Oct '16

29 Oct '16

Dear Developers, I have a question for you. As you might be knowing. there is a patch now available for OVS for GTP-U support. When the developers of the patch submitted it to add to the main branch of OVS, the OVS developers told the following. It doesn't look like upstream Linux has a GTP implementation. Because our usual workflow is to get code upstream first, you should start by submitting the kernel patches against net-next when that tree is open (I don't follow netdev, so I have no idea when that is). Then, once the GTP code is upstream, we can get it into OVS here. So, is the upstream Linux having support for GTP now? I am asking this because I am not certain about what upstream Linux means. If you say that upstream Linux has support for GTP-U, then I can ask the patch developers to port it for the latest version of OVS and add it to the main branch. Best Regards, Ashish Kurian

2 1

Load balancing issue on Multi-TRX configuration
by Mrinal Mishra 20 Oct '16

20 Oct '16

1 0

OpenGGSN IPv6 support
by groos＠xiplink.com 11 Oct '16

11 Oct '16

Hi All I have added IPv6 support to OpenGGSN and if anybody is interested I will gladly make my patch available. It definitely needs more testing and perhaps a bit of cleanup, but currently it can do 4-in-4, 6-in-4, 4-in-6 and 6-in-6. Gerrie

3 2

[libgtpnl]add README.md file for build guide
by junpei yoshino 07 Oct '16

07 Oct '16

Hello I write build guide. README.md | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 README.md diff --git a/README.md b/README.md new file mode 100644 index 0000000..c6718d2 --- /dev/null +++ b/README.md @@ -0,0 +1,11 @@ +# How to build + +``` +$ git clone git://git.osmocom.org/libgtpnl +$ cd libgtpnl +$ autoreconf -fi +$ cd tools +$ make gtp-tunnel +$ make gtp-link +``` + Best Regards, Junpei Yoshino -- junpei.yoshino(a)gmail.com

3 8

OpenGGSN on live networks
by Bjørn Remseth 06 Oct '16

06 Oct '16

Hi I’m Bjørn, I work for Telenor Digital. We’re running a live experimental network (called “loltel” :-) that is technically operating as a full stack MVNO (mobile virtual network operator), renting network access from Telenor Norway. It’s mostly but not exclusively based on open source components. When we started up about two years ago we considered using OpenGGSN, but couldn’t figure out how to get it into an operational state and we couldn’t find anyone to help us, so we chose a commercial vendor instead. But today we’re again thinking of using OpenGGSN for an experiment, possibly in our live network. Are there anyone on this list with experiences either with running it in a live network, or with thoughts about how to do it / what would be necessary to get the job done? We’d love to have a discussion with you. Hope to hear from you soon. Best wishes Bjørn -- Bjørn Remseth --- Senior Software Engineer (+47) 47900184 | rmz(a)comoyo.com <mailto:ane@comoyo.com> | www.comoyo.com <http://www.comoyo.com/>

3 6

openggsn patches now via gerrit
by Neels Hofmeyr 06 Oct '16

06 Oct '16

Hi all, OpenGGSN has moved to gerrit today. Patch submissions shall go there now, no longer to this mailing list. ~Neels -- - Neels Hofmeyr <nhofmeyr(a)sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Alt-Moabit 93 * 10559 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschäftsführer / Managing Directors: Harald Welte

1 0

Installation error
by Ashish Kurian 06 Oct '16

06 Oct '16

Hi All, I downloaded the tar ball release libgtpnl-1.0.1.tar.gz and un tared it. Then I tried to build and install the package. But the command sudo ./configure is giving me the following error. configure: error: cannot find install-sh, install.sh, or shtool in build-aux "."/build-aux Do you know what could be the reason for this error? Best Regards, Ashish Kurian

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osmocom-net-gprs October 2016