Reasons for multiple domains

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There are a number of reasons why you might need to partition your network into multiple domains.

You might need to partition your network into multiple domains for one of the following reasons:
  • Your network exceeds a certain size. See the Guidelines for number of network domains to determine whether your network requires multiple domains.
  • Discovery takes a very long time. You can shorten your discovery times by partitioning your network into multiple domains.
  • Operational boundaries dictate the need for multiple domains. Examples of operational boundaries include geographical boundaries and security boundaries.
  • Your network contains overlapping IP addresses.

For more information about restricting access to domain, see Restricting access to domains in the GUI.

Tip:

If you are intending to run cross-domain discoveries in order to visualize links between the different domains, you must consider how the boundaries between domains affects cross-domain links. In particular, ensure that you choose domain boundaries with a minimum of cross-domain links.