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<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE chapter SYSTEM "chapter.dtd">
<chapter>
<header>
<copyright>
<year>2002</year><year>2013</year>
<holder>Ericsson AB. All Rights Reserved.</holder>
</copyright>
<legalnotice>
The contents of this file are subject to the Erlang Public License,
Version 1.1, (the "License"); you may not use this file except in
compliance with the License. You should have received a copy of the
Erlang Public License along with this software. If not, it can be
retrieved online at http://www.erlang.org/.
Software distributed under the License is distributed on an "AS IS"
basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
the License for the specific language governing rights and limitations
under the License.
</legalnotice>
<title>Megaco mib</title>
<prepared>Micael Karlberg</prepared>
<responsible>Micael Karlberg</responsible>
<docno></docno>
<approved>Micael Karlberg</approved>
<checked></checked>
<date>2007-06-15</date>
<rev>%VSN%</rev>
<file>megaco_mib.xml</file>
</header>
<section>
<title>Intro</title>
<p>The Megaco mib is as of yet not standardized and our
implementation is based on
<em>draft-ietf-megaco-mib-04.txt</em>. Almost all of the mib
cannot easily be implemented by the megaco application. Instead
these things should be implemented by a user (of the megaco
application). </p>
<p>So what part of the mib is implemented? Basically the relevant
statistic counters of the <em>MedGwyGatewayStatsEntry</em>.</p>
</section>
<section>
<title>Statistics counters</title>
<p>The implementation of the statistic counters is
lightweight. I.e. the statistic counters are handled
separately by different entities of the application. For
instance our two transport module(s) (see <seealso marker="megaco_tcp#stats">megaco_tcp</seealso> and <seealso marker="megaco_udp#stats">megaco_udp</seealso>) maintain their
own counters and the application engine (see <seealso marker="megaco#stats">megaco</seealso>) maintain its own
counters.</p>
<p>This also means that if a user implement their own transport
service then it has to maintain its own statistics.</p>
</section>
<section>
<title>Distribution</title>
<p>Each megaco application maintains its own set of counters. So
in a large (distributed) MG/MGC it could be necessary to
collect the statistics from several nodes (each) running the
megaco application (only one of them with the transport).</p>
</section>
</chapter>
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