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Enterprise Extender (HPR/IP) provides a mechanism for integrating SNA applications with an IP network.
SNA applications are designed to use SNA protocols to communicate over SNA networks with other SNA applications. When installed in a TCP/IP network using Enterprise Extender, SNA applications can still communicate; the Enterprise Extender function provides a mechanism for transporting SNA protocols over the IP network. In particular, it provides APPN High-Performance Routing (HPR) functionality, giving the applications the benefits of both APPN and IP connectivity.
Enterprise Extender in SNAP-IX is implemented simply as a communications link. To connect two SNA applications over IP, you define an Enterprise Extender link, in the same way as for any other link type such as SDLC or Ethernet.
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