Hello guys and @Sukchan Lee acetcom@gmail.com
I tested with sucess the send and receive SMS in new version of NextEPC running together with OSMO-MSC/HLR (SGS).
Thanks
Romeu Medeiros
Hi Romeu,
Wow! It’s amazing. I can’t thank you enough for your effort.
Best Regards, Sukchan
2019년 7월 17일 (수) 오전 1:33, Romeu Medeiros medeiros@medeiros.eng.br님이 작성:
Hello guys and @Sukchan Lee
I tested with sucess the send and receive SMS in new version of NextEPC running together with OSMO-MSC/HLR (SGS).
Thanks
Romeu Medeiros
Sukchan,
We can't thank you enough for the nextepc.
I think that in some situations the msc is losing the sgs registrations and can't forward the sms. But I will more tests before to disturb you there.
Thanks and success!
Romeu Medeiros
Em ter, 16 de jul de 2019 às 19:35, Sukchan Lee acetcom@gmail.com escreveu:
Hi Romeu,
Wow! It’s amazing. I can’t thank you enough for your effort.
Best Regards, Sukchan
2019년 7월 17일 (수) 오전 1:33, Romeu Medeiros medeiros@medeiros.eng.br님이 작성:
Hello guys and @Sukchan Lee acetcom@gmail.com
I tested with sucess the send and receive SMS in new version of NextEPC running together with OSMO-MSC/HLR (SGS).
Thanks
Romeu Medeiros
Hi Romeu,
On Tue, Jul 16, 2019 at 07:45:02PM -0300, Romeu Medeiros wrote:
I think that in some situations the msc is losing the sgs registrations and can't forward the sms. But I will more tests before to disturb you there.
feel free to share some pcap files, we're also happy to review them from the osmocom point of view.
Hello Harald,
I will make more tests in the Labs tomorrow and I'll let you know if I found something.
Thanks for the help!
Romeu Medeiros
On Wed, Jul 17, 2019 at 6:40 AM Harald Welte laforge@gnumonks.org wrote:
Hi Romeu,
On Tue, Jul 16, 2019 at 07:45:02PM -0300, Romeu Medeiros wrote:
I think that in some situations the msc is losing the sgs registrations
and
can't forward the sms. But I will more tests before to disturb you there.
feel free to share some pcap files, we're also happy to review them from the osmocom point of view.
--
- Harald Welte laforge@gnumonks.org
============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)
Harald,
I some situations, when the MME lost connection with the OSMO-MSC and return this connection if I try send a MT-CSFB the OSMO-MSC is crashing.
I get this error in the log:
<0006> sgs_iface.c:470 XXXXXXXXXX state == 1 conf_by_radio_contact_ind == 1 <0011> sgs_iface.c:251 (sub IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269) Tx PAGING-REQUEST suitable MME found, but no SGS connection present! <0005> sgs_iface.c:480 SGs-UE(imsi:724210000000003)[0x563949b08fc0]{SGs-ASSOCIATED}: Will not Page (no MME) <0005> paging.c:101 Paging: IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 for MNCC: establish call: Starting paging failed (rc=-22) <0001> gsm_04_08_cc.c:1922 trans(CC IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 callref-0x1396 tid-255) Failed to allocate paging token. Segmentation fault (core dumped)
I'll try why this happened, but I'm not getting used to it in the OSMO source code. Can you tell me (if you have time) how identify where this crash is occouring?
In the attach have the PCAP of the SGS between the OSMO and NextEPC-MME.
Thanks
Romeu Medeiros
On Wed, Jul 17, 2019 at 6:40 AM Harald Welte laforge@gnumonks.org wrote:
Hi Romeu,
On Tue, Jul 16, 2019 at 07:45:02PM -0300, Romeu Medeiros wrote:
I think that in some situations the msc is losing the sgs registrations
and
can't forward the sms. But I will more tests before to disturb you there.
feel free to share some pcap files, we're also happy to review them from the osmocom point of view.
--
- Harald Welte laforge@gnumonks.org
============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)
Harald,
Sorry, I forgot to attach the pcap file.
Thanks
On Wed, Jul 17, 2019 at 6:17 PM Romeu Medeiros medeiros@medeiros.eng.br wrote:
Harald,
I some situations, when the MME lost connection with the OSMO-MSC and return this connection if I try send a MT-CSFB the OSMO-MSC is crashing.
I get this error in the log:
<0006> sgs_iface.c:470 XXXXXXXXXX state == 1 conf_by_radio_contact_ind == 1 <0011> sgs_iface.c:251 (sub IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269) Tx PAGING-REQUEST suitable MME found, but no SGS connection present! <0005> sgs_iface.c:480 SGs-UE(imsi:724210000000003)[0x563949b08fc0]{SGs-ASSOCIATED}: Will not Page (no MME) <0005> paging.c:101 Paging: IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 for MNCC: establish call: Starting paging failed (rc=-22) <0001> gsm_04_08_cc.c:1922 trans(CC IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 callref-0x1396 tid-255) Failed to allocate paging token. Segmentation fault (core dumped)
I'll try why this happened, but I'm not getting used to it in the OSMO source code. Can you tell me (if you have time) how identify where this crash is occouring?
In the attach have the PCAP of the SGS between the OSMO and NextEPC-MME.
Thanks
Romeu Medeiros
On Wed, Jul 17, 2019 at 6:40 AM Harald Welte laforge@gnumonks.org wrote:
Hi Romeu,
On Tue, Jul 16, 2019 at 07:45:02PM -0300, Romeu Medeiros wrote:
I think that in some situations the msc is losing the sgs registrations
and
can't forward the sms. But I will more tests before to disturb you
there.
feel free to share some pcap files, we're also happy to review them from the osmocom point of view.
--
- Harald Welte laforge@gnumonks.org
============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)
Hi Romeu,
On Wed, Jul 17, 2019 at 06:17:31PM -0300, Romeu Medeiros wrote:
I some situations, when the MME lost connection with the OSMO-MSC and return this connection if I try send a MT-CSFB the OSMO-MSC is crashing.
that obviously shouldn't happen.
I get this error in the log:
<0006> sgs_iface.c:470 XXXXXXXXXX state == 1 conf_by_radio_contact_ind == 1 <0011> sgs_iface.c:251 (sub IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269) Tx PAGING-REQUEST suitable MME found, but no SGS connection present! <0005> sgs_iface.c:480 SGs-UE(imsi:724210000000003)[0x563949b08fc0]{SGs-ASSOCIATED}: Will not Page (no MME) <0005> paging.c:101 Paging: IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 for MNCC: establish call: Starting paging failed (rc=-22) <0001> gsm_04_08_cc.c:1922 trans(CC IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 callref-0x1396 tid-255) Failed to allocate paging token. Segmentation fault (core dumped)
Thanks. I created a bug at https://osmocom.org/issues/4117
I'll try why this happened, but I'm not getting used to it in the OSMO source code. Can you tell me (if you have time) how identify where this crash is occouring?
It's the same as any other C program: * compile with "-g" * run it in gdb * provoke the setfault * take a "backtrace full" after the crash
It would be great if you could amend the bugtracker with that information, but I would guess the information you provided is already sufficient for Philipp, the implementor of the SGs support in OsmoMSC.
Hello Harald,
I sent the backtrace full in the bugtracker.
Thanks
Romeu Medeiros
On Wed, Jul 17, 2019 at 8:30 PM Harald Welte laforge@gnumonks.org wrote:
Hi Romeu,
On Wed, Jul 17, 2019 at 06:17:31PM -0300, Romeu Medeiros wrote:
I some situations, when the MME lost connection with the OSMO-MSC and return this connection if I try send a MT-CSFB the OSMO-MSC is crashing.
that obviously shouldn't happen.
I get this error in the log:
<0006> sgs_iface.c:470 XXXXXXXXXX state == 1 conf_by_radio_contact_ind
== 1
<0011> sgs_iface.c:251 (sub IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269) Tx PAGING-REQUEST suitable MME found, but no SGS connection present! <0005> sgs_iface.c:480 SGs-UE(imsi:724210000000003)[0x563949b08fc0]{SGs-ASSOCIATED}: Will not
Page
(no MME) <0005> paging.c:101 Paging: IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 for MNCC: establish call: Starting paging failed (rc=-22) <0001> gsm_04_08_cc.c:1922 trans(CC IMSI-724210000000003:MSISDN-5544912340003:TMSI-0x8E44F269 callref-0x1396 tid-255) Failed to allocate paging token. Segmentation fault (core dumped)
Thanks. I created a bug at https://osmocom.org/issues/4117
I'll try why this happened, but I'm not getting used to it in the OSMO source code. Can you tell me (if you have time) how identify where this crash is occouring?
It's the same as any other C program:
- compile with "-g"
- run it in gdb
- provoke the setfault
- take a "backtrace full" after the crash
It would be great if you could amend the bugtracker with that information, but I would guess the information you provided is already sufficient for Philipp, the implementor of the SGs support in OsmoMSC.
--
- Harald Welte laforge@gnumonks.org
============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)
Hello Sukchan,
I found something stranger,
When the VLR try to Pagging the UE, the NextEPC-MME make the pagging correctly.
But when this UE is not reachable the NextEPC it not sending to VLR the SGsAP-UE-UNREACHABLE, like is necessary in the documentation:
[image: image.png]
I will try to fix it.
In attached I'm sending a pcap from this case.
The IMSI unreachable in this case is 724210000000002.
Thanks
Romeu Medeiros
On Tue, Jul 16, 2019 at 7:45 PM Romeu Medeiros medeiros@medeiros.eng.br wrote:
Sukchan,
We can't thank you enough for the nextepc.
I think that in some situations the msc is losing the sgs registrations and can't forward the sms. But I will more tests before to disturb you there.
Thanks and success!
Romeu Medeiros
Em ter, 16 de jul de 2019 às 19:35, Sukchan Lee acetcom@gmail.com escreveu:
Hi Romeu,
Wow! It’s amazing. I can’t thank you enough for your effort.
Best Regards, Sukchan
2019년 7월 17일 (수) 오전 1:33, Romeu Medeiros medeiros@medeiros.eng.br님이 작성:
Hello guys and @Sukchan Lee acetcom@gmail.com
I tested with sucess the send and receive SMS in new version of NextEPC running together with OSMO-MSC/HLR (SGS).
Thanks
Romeu Medeiros
Hi Romeu,
I’ve missed to implement ue-unreachable. Soon, I will add this feature.
Thank you for your effort.
Best Regards, Sukchan
2019년 7월 18일 (목) 오전 4:47, Romeu Medeiros medeiros@medeiros.eng.br님이 작성:
Hello Sukchan,
I found something stranger,
When the VLR try to Pagging the UE, the NextEPC-MME make the pagging correctly.
But when this UE is not reachable the NextEPC it not sending to VLR the SGsAP-UE-UNREACHABLE, like is necessary in the documentation:
[image: image.png]
I will try to fix it.
In attached I'm sending a pcap from this case.
The IMSI unreachable in this case is 724210000000002.
Thanks
Romeu Medeiros
On Tue, Jul 16, 2019 at 7:45 PM Romeu Medeiros medeiros@medeiros.eng.br wrote:
Sukchan,
We can't thank you enough for the nextepc.
I think that in some situations the msc is losing the sgs registrations and can't forward the sms. But I will more tests before to disturb you there.
Thanks and success!
Romeu Medeiros
Em ter, 16 de jul de 2019 às 19:35, Sukchan Lee acetcom@gmail.com escreveu:
Hi Romeu,
Wow! It’s amazing. I can’t thank you enough for your effort.
Best Regards, Sukchan
2019년 7월 17일 (수) 오전 1:33, Romeu Medeiros medeiros@medeiros.eng.br님이 작성:
Hello guys and @Sukchan Lee acetcom@gmail.com
I tested with sucess the send and receive SMS in new version of NextEPC running together with OSMO-MSC/HLR (SGS).
Thanks
Romeu Medeiros
-
Harald Welte -
Romeu Medeiros -
Sukchan Lee