In a star topology, the host communicates directly with each node through the external switch.

You must configure the network properly with a recommended external switch in a star topology; for network synchronization, you must use an external 802.1AS switch. Refer to the External Switch Requirements section for information about what to look for in an external 802.1AS switch.

Figure 28. Star Topology

Advantages:

  • Unpowered nodes and/or node failure does not disrupt network communication with other nodes
  • Simple installation, expansion, and troubleshooting
Note Network configuration and programming require careful consideration. Visit ni.com/info and enter cdaqenet for information about automatically improving reliability.

Disadvantages:

  • Requires an external switch (external 802.1AS switch for network synchronization)