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authorErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
committerErlang/OTP <[email protected]>2009-11-20 14:54:40 +0000
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+<?xml version="1.0" encoding="latin1" ?>
+<!DOCTYPE chapter SYSTEM "chapter.dtd">
+
+<chapter>
+ <header>
+ <copyright>
+ <year>2002</year><year>2009</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 it's own
+ counters.</p>
+ <p>This also means that if a user implement their own transport
+ service then it has to maintain it's own statistics.</p>
+ </section>
+
+ <section>
+ <title>Distribution</title>
+ <p>Each megaco application maintains it's 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>
+