https://osmocom.org/https://osmocom.org/favicon.ico?16647414092020-09-04T21:00:38ZOpen Source Mobile CommunicationsOsmoBTS - Feature #4748: Indicate TRX number in RSL messages of multi-TRX BTShttps://osmocom.org/issues/4748?journal_id=195612020-09-04T21:00:38Zfixeria
<ul></ul><p>Hi Harald,</p>
<blockquote>
<p>there is nothing in the IPA or RSL message indicating which TRX the message relates to.</p>
</blockquote>
<p>actually, the RSL TEI is reflected in the IPA header ("Protocol" field). You just need to make sure that all transceivers in osmo-bsc.cfg have unique 'rsl e1 tei NUM' values assigned. Note that we do not require all transceivers to use unique values, so they all can use 0x00 by default, because all per-TRX RSL connections are separate TCP/IP connections.</p>
<p>See <a class="external" href="https://git.osmocom.org/docker-playground/tree/ttcn3-bts-test/osmo-bsc.cfg">https://git.osmocom.org/docker-playground/tree/ttcn3-bts-test/osmo-bsc.cfg</a>, and e.g. <a class="external" href="https://jenkins.osmocom.org/jenkins/view/TTCN3/job/ttcn3-bts-test/1014/artifact/logs/bts-tester-generic/BTS_Tests_SMSCB.TC_cbc_sdcch8_load_idle.pcap.gz">https://jenkins.osmocom.org/jenkins/view/TTCN3/job/ttcn3-bts-test/1014/artifact/logs/bts-tester-generic/BTS_Tests_SMSCB.TC_cbc_sdcch8_load_idle.pcap.gz</a> (filter 'gsm_ipa.protocol > 0').</p> OsmoBTS - Feature #4748: Indicate TRX number in RSL messages of multi-TRX BTShttps://osmocom.org/issues/4748?journal_id=195622020-09-04T21:31:31ZHoernchen
<ul></ul><p>I'd go for the port number, since it's the easiest choice and the other approaches don't really add anything more to it.</p> OsmoBTS - Feature #4748: Indicate TRX number in RSL messages of multi-TRX BTShttps://osmocom.org/issues/4748?journal_id=195652020-09-05T09:00:17Zlaforge
<ul></ul><p>On Fri, Sep 04, 2020 at 09:00:38PM +0000, fixeria [REDMINE] wrote:</p>
<blockquote>
<p>actually, the RSL TEI is reflected in the IPA header ("Protocol" field). You just need to make sure that all transceivers in osmo-bsc.cfg have unique 'rsl e1 tei NUM' values assigned. Note that we do not require all transceivers to use unique values, so they all can use 0x00 by default, because all per-TRX RSL connections are separate TCP/IP connections.</p>
</blockquote>
<p>Oh, great. I must have forgotten about that. We should change all our multi-trx example configs<br />accordingly.</p> OsmoBTS - Feature #4748: Indicate TRX number in RSL messages of multi-TRX BTShttps://osmocom.org/issues/4748?journal_id=195822020-09-07T16:09:49Zlaforge
<ul></ul><p>The fun part is: We don't have any multi-trx config examples in osmo-bsc.git. That needs to change, and the example should then set the "RSL TEI" for each TRX.</p> OsmoBTS - Feature #4748: Indicate TRX number in RSL messages of multi-TRX BTShttps://osmocom.org/issues/4748?journal_id=238552022-04-01T03:40:31Zfixeria
<ul><li><strong>Status</strong> changed from <i>New</i> to <i>Feedback</i></li><li><strong>Assignee</strong> changed from <i>pespin</i> to <i>fixeria</i></li><li><strong>% Done</strong> changed from <i>0</i> to <i>100</i></li></ul><p>laforge wrote in <a href="#note-4">#note-4</a>:</p>
<blockquote>
<p>The fun part is: We don't have any multi-trx config examples in osmo-bsc.git. That needs to change, and the example should then set the "RSL TEI" for each TRX.</p>
</blockquote>
<p><a class="external" href="https://gerrit.osmocom.org/c/osmo-bsc/+/27629">https://gerrit.osmocom.org/c/osmo-bsc/+/27629</a> doc/examples: add a multi-trx config config example [NEW]</p> OsmoBTS - Feature #4748: Indicate TRX number in RSL messages of multi-TRX BTShttps://osmocom.org/issues/4748?journal_id=238622022-04-05T13:43:33Zfixeria
<ul><li><strong>Status</strong> changed from <i>Feedback</i> to <i>Resolved</i></li></ul><p>Applied in changeset <a class="changeset" title="doc/examples: add a multi-trx config config example So far we had no multi-trx config examples a..." href="https://osmocom.org/projects/osmobsc/repository/osmo-bsc/revisions/caf091f4655a41e7fdb705247301e90732097067">osmobsc:osmo-bsc|caf091f4655a41e7fdb705247301e90732097067</a>.</p>