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<h2>Nokia NetAct™ architecture</h2>

<p>Nokia NetAct consists of a common core, a number of functionality
areas and 3rd party tools that interface with each other via a common messaging
bus. The core includes, for example, a common network model, network topology
and standard interfaces. The centralised servers are high-end machines with
sufficient capacity to handle the necessary number of interactive users. The
Unified Mediation and Adaptation (UMA) layer provides scalability for the
whole system.</p>


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<h3>Hardware
solution</h3>
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<p>Nokia NetAct's hardware solution consists of one or more
server clusters and operator seats. Regional clusters manage a specific region,
while global clusters are intended for centralised network management tasks.
When distributing the operations between regional and national management
centres, the regional server clusters and 3rd party management systems are
connected to the global cluster via a Data Communication Network (DCN). In
the OSS3 releases the hardware setup contains the following features:</p>


<ul>
<li><p>High-availability servers (HP-UX)</p>
</li>
<li><p>Application servers (Windows and HP-UX)</p>
</li>
<li><p>Operator seats</p>
</li>
<li><p>Storage Area Network (SAN) with disk
array</p>
</li>
<li><p>DCN backbone</p>
</li>
</ul>
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