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<p>(APPC) routing tables that explicitly defined endpoint to endpoint connectivity. APPN sessions would route to endpoints through other allowed node types until it found the destination. This is similar to the way that routers for the <a href="page.php?w=Internet_Protocol">Internet Protocol</a> and the Netware <a href="page.php?w=Internetwork_Packet_Exchange">Internetwork Packet Exchange</a> protocol function. (APPN is also sometimes referred to PU2.1 or Physical Unit 2.1. APPC, also sometime referred to LU6.2 or Logical Unit 6.2, was the only</p><p>
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