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RF group

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

An RF group is a configuration grouping that coordinates radio-frequency settings such as power and channel selection across wireless LAN controllers.

An RF group coordinates radio-frequency settings across multiple wireless LAN controllers, including power levels and channel selections. It is related to, but separate from, the mobility group used to support roaming clients between controllers. section 21.1.2 section 21.4

Use the terminology carefully during WLC initial configuration:

  • Mobility group: coordinates multiple WLCs to support clients roaming between access points controlled by different controllers. section 21.1.2
  • RF group: manages and coordinates radio-frequency settings across multiple WLCs. section 21.4
  • The mobility group name and RF group name are commonly the same, but they can be changed independently later from the GUI. section 21.1.2

Initial WLC prompt

The Cisco Wizard Configuration Tool prompts for a combined Mobility/RF Group Name, such as ManningCCNA. This establishes the group naming used during initial configuration.

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

How deep it goes
Defines the coordination role and distinguishes it from mobility, but does not detail RF algorithms or verification commands.
Examples
Uses the initial-configuration prompt “Mobility/RF Group Name” with the example value ManningCCNA.
What it assumes
Assumes familiarity with wireless LAN controllers, access points, and basic WLC initial configuration.
What you can do after
Evaluate whether a WLC setting coordinates RF behavior or supports client roaming between controllers.
How it connects
Links RF groups with wireless LAN controllers, mobility groups, roaming clients, access points, power levels, and channel selection.
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