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     <h3 class="title">
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      25.4.4 Using High-Speed Interconnects with NDB Cluster
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  <p>
   Even before design of
   <a class="link" href="mysql-cluster.html" title="Chapter 25 MySQL NDB Cluster 8.4">
    <code class="literal">
     NDBCLUSTER
    </code>
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   began in 1996, it was evident that one of the major problems to be
      encountered in building parallel databases would be communication
      between the nodes in the network. For this reason,
   <a class="link" href="mysql-cluster.html" title="Chapter 25 MySQL NDB Cluster 8.4">
    <code class="literal">
     NDBCLUSTER
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   was designed from the very
      beginning to permit the use of a number of different data
      transport mechanisms, or transporters.
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   NDB Cluster supports three of these (see
   <a class="xref" href="mysql-cluster-basics.html" title="25.2.1 NDB Cluster Core Concepts">
    Section 25.2.1, “NDB Cluster Core Concepts”
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   ). A fourth transporter,
      Scalable Coherent Interface (SCI), was also supported in very old
      versions of
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    NDB
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   . This required specialized
      hardware, software, and MySQL binaries that are no longer
      available.
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