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Regulatory domain

As explained in Acing the CCNA Exam: Volume 2 Advanced Networking and Security

A regulatory domain is a regional set of legal rules governing permitted wireless frequencies, channels, and transmission characteristics.

A regulatory domain is a regional set of legal rules governing wireless RF use. During WLC setup, select a country code whose domain matches the managed APs; otherwise, the WLC cannot manage them. section 21.1.2

Use these checks during initial WLC configuration:

  • Read the AP model suffix to identify its regulatory domain, such as “-E” in AIR-CAP3502I-E-K9. section 21.1.2
  • Enter a country code belonging to that domain; an AP with the “-E” domain can use FR (France). section 21.1.2
  • Verify that the WLC country code and AP regulatory domain match before completing setup. section 21.1.2
Enter Country Code list (enter ‘help’ for a list of countries) [US]: FR

The wizard prompt shows where the WLC country code is entered and how FR is selected. section 21.1.2

How Acing the CCNA Exam: Volume 2 Advanced Networking and Security covers it

How deep it goes
Defines compatibility through country codes and AP model suffixes, but does not detail individual frequency or channel rules.
Examples
Uses “-E” APs, AIR-CAP3502I-E-K9, and France (FR) as matching-domain examples.
What it assumes
Assumes recognition of AP model names and country codes while clarifying why regional law requires a match.
What you can do after
Operate/configure a WLC by entering a country code compatible with the APs it manages.
How it connects
Connects country codes with access points, wireless LAN controllers, and RF frequency bands.

This explainer was generated by Manning's knowledge graph from the text of Acing the CCNA Exam: Volume 2 Advanced Networking and Security. The section links point to the parts of the book it draws on.