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<div class="" style="word-wrap:break-word">Hi Community,
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<div class="">Happy New Year!</div>
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<div class=""><span class="x_x_Apple-tab-span" style="white-space:pre"></span>Would like to ask if anyone here have experience integrating OsmoBSC to Nokia MSC? Currently we are doing the integration in Nokia MSC and we encountered issue. Basically, in the
SCCP part, the BSC is trying to send UDT (BSSAP) Reset but no response from the MSC. After the default timer of the RESET, we observed a SACK SST and SACK UDTS. In the SACK SST, we saw the trace that there is no Calling indicator which is my BSC point code.
When checking the trace we saw this Affected Subsystem Number: 254. I’ve red some documentations in OSMO but I don’t find any SCCP management configuration in OSMO so I think this one is on MSC side. Below is the Trace we captured. </div>
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<div class="">BSC Point code - 2262</div>
<div class="">Nokia Point code - 7039</div>
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<div class=""><b class="">Logs Below:</b></div>
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<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> sccp_scrc.c:420 sccp_scrc_rx_sclc_msg: HDR=(CL:CLDT,V=0,LEN=0),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Routing Context,L=4,D=00000000),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Protocol Class,L=4,D=00000000),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Source Address,L=20,D=0002000380020008000008d680030008000000fe),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Destination Address,L=20,D=000200038002000800001b7f80030008000000fe),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Sequence Control,L=4,D=00000000),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Data,L=6,D=000430040120)</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> osmo_ss7_hmrt.c:278 m3ua_hmdc_rx_from_l2(): dpc=7039=3.111.7 not local, message is for routing</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> osmo_ss7_hmrt.c:227 Found route for dpc=7039=3.111.7: pc=0=0.0.0 mask=0x0=0.0.0 via AS nokia_msc proto=m3ua</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> osmo_ss7_hmrt.c:233 rt->dest.as proto is M3UA for dpc=7039=3.111.7</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> m3ua.c:507 XUA_AS(nokia_msc)[0x11886f0]{AS_ACTIVE}: Received Event AS-TRANSFER.req</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><0007> a_reset.c:110 A-RESET(msc-0)[0x1194c80]{DISC}: state_chg to DISC</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><0007> fsm.c:189 A-RESET(msc-0)[0x1194c80]{DISC}: Timeout of T4</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><0007> a_reset.c:106 A-RESET(msc-0)[0x1194c80]{DISC}:
<b class="">(re)sending BSSMAP RESET message...</b></div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><0007> osmo_bsc_sigtran.c:93 Sending RESET to MSC: RI=SSN_PC,PC=3.111.7,SSN=BSSAP</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> sccp_scrc.c:420 sccp_scrc_rx_sclc_msg: HDR=(CL:CLDT,V=0,LEN=0),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Routing Context,L=4,D=00000000),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Protocol Class,L=4,D=00000000),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Source Address,L=20,D=0002000380020008000008d680030008000000fe),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Destination Address,L=20,D=000200038002000800001b7f80030008000000fe),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Sequence Control,L=4,D=00000000),</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><span class="x_Apple-tab-span" style="white-space:pre"></span>PART(T=Data,L=6,D=000430040120)</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> osmo_ss7_hmrt.c:278 m3ua_hmdc_rx_from_l2(): dpc=7039=3.111.7 not local, message is for routing</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> osmo_ss7_hmrt.c:227 Found route for dpc=7039=3.111.7: pc=0=0.0.0 mask=0x0=0.0.0 via AS nokia_msc proto=m3ua</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> osmo_ss7_hmrt.c:233 rt->dest.as proto is M3UA for dpc=7039=3.111.7</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><001f> m3ua.c:507 XUA_AS(nokia_msc)[0x11886f0]{AS_ACTIVE}: Received Event AS-TRANSFER.req</div>
<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><0007> a_reset.c:110 A-RESET(msc-0)[0x1194c80]{DISC}: state_chg to DISC</div>
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<div class="" style="margin:0px; line-height:normal; color:rgb(69,69,69)"><b class="">OSMOBSC Version:</b></div>
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<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">OsmoBSC# show version</font></div>
<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">OsmoBSC 1.3.0.132-bcbc5 (OsmoBSC).</font></div>
<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">Copyright (C) 2008-2018 Harald Welte, Holger Freyther</font></div>
<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">Contributions by Daniel Willmann, Jan Lübbe, Stefan Schmidt</font></div>
<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">Dieter Spaar, Andreas Eversberg, Sylvain Munaut, Neels Hofmeyr</font></div>
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</font></div>
<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">License AGPLv3+: GNU AGPL version 3 or later <<a href="http://gnu.org/licenses/agpl-3.0.html" class="">http://gnu.org/licenses/agpl-3.0.html</a>></font></div>
<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">This is free software: you are free to change and redistribute it.</font></div>
<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">There is NO WARRANTY, to the extent permitted by law.</font></div>
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<div class="" style="margin:0px; line-height:normal"><font color="#454545" class="">OsmoBSC#</font></div>
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<font face="Palatino" class=""><span class="" style="font-size:12px"><b class="">Sonny Lafuente | Systems Engineer | Entropy Solution Philippine</b>s</span></font></div>
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<blockquote type="cite" class="">
<div class="">On 6 Jan 2021, at 8:41 AM, Sonny Lafuente <<a href="mailto:sonny.lafuente@entropysolution.com" class="">sonny.lafuente@entropysolution.com</a>> wrote:</div>
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<div class="" style="word-wrap:break-word">Hi Community,
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</div>
<div class="">Happy New Year!</div>
<div class=""><br class="">
</div>
<div class=""><span class="x_x_Apple-tab-span" style="white-space:pre"></span>Would like to ask if anyone here have experience integrating OsmoBSC to Nokia MSC? Currently we are doing the integration in Nokia MSC and we encountered issue. Basically, in the
SCCP part, the BSC is trying to send UDT (BSSAP) Reset but no response from the MSC. After the default timer of the RESET, we observed a SACK SST and SACK UDTS. In the SACK SST, we saw the trace that there is no Calling indicator which is my BSC point code.
When checking the trace we saw this Affected Subsystem Number: 254. I’ve red some documentations in OSMO but I don’t find any SCCP management configuration in OSMO so I think this one is on MSC side. Below is the Trace we captured. </div>
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<div class="">BSC Point code - 2262</div>
<div class="">Nokia Point code - 7039</div>
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<div class=""><font face="Palatino" class="">Regards,</font></div>
<div class=""><font face="Palatino" class="">Sonny</font></div>
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<span id="x_cid:b403243b-a19f-4bd9-b017-a9217212b9d8@apcprd04.prod.outlook.com"><PastedGraphic-1.tiff></span><span id="x_cid:37afbd6d-209b-41e5-9e59-8317944d95de@apcprd04.prod.outlook.com"><PastedGraphic-2.tiff></span><span id="x_cid:61bc3053-9a98-4612-95e5-4f955259a1b0@apcprd04.prod.outlook.com"><PastedGraphic-3.tiff></span><span id="x_cid:E1CD9A38C6B9684CBFD3C0183877882B@apcprd04.prod.outlook.com"><sccp
captured nokia MSC.pcap></span></div>
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