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The architecture of NPDA comprised several key components designed to facilitate SNA network problem determination. The command processor was responsible for interpreting user commands entered through the TSO/ISPF interface. The data collector gathered network statistics and information from the SNA network.

The display module presented the collected data in a user-friendly format. Communication between these components and the network relied on SNA protocols. Configuration files were used to define network parameters, such as LU names, node addresses, and trace options.

The `DISPLAY` command was used to view the status of network resources, while the `TRACE` command captured network traffic for analysis. The `PING` command tested connectivity. The transition to IBM Z NetView involves understanding NetView's architecture and adapting existing diagnostic processes to its interfaces and scripting capabilities.

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