Cisco Cisco Wireless LAN Controller Module Information Guide

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Wireless LAN Controller (WLC) Mobility Groups
FAQ
Document ID: 107188
Contents
Introduction
What is a Mobility Group?
What are the prerequisites for a Mobility Group?
How do I configure a Mobility Group on the WLC?
How do I configure a Mobility Group with WCS?
Can I configure WLCs in multiple Mobility Groups?
Can the LWAPPs join a WLC that belongs to a Mobility Group that is different from the currently associated
Mobility Group?
How are Mobilty Messages exchanged between WLCs?
Is there a command to troubleshoot mobility communication between WLCs?
How many controllers can be in a Mobility Group?
What is a mobility list? How many controllers can be part of the mobility list of a controller?
How do I secure or encrypt the Mobility Messages exchanged between the WLCs?
What is Mobility Anchor?
What is the difference between RF Groups and Mobility Groups?
Will Mobility Groups work between WLCs if I have one or more controllers behind a network address
translation (NAT) device?
Related Information
Introduction
This document provides information on the most frequently asked questions (FAQ) about Mobility Groups. A
Mobility Group is a relatively new concept that is applicable to the Cisco Unified Wireless LAN
Environment.
Refer to Cisco Technical Tips Conventions for more information on document conventions.
Q. What is a Mobility Group?
A. A Mobility Group is a group of Wireless LAN Controllers (WLCs) in a network with the
same Mobility Group name. These WLCs can dynamically share context and state of client
devices, WLC loading information, and can also forward data traffic among them, which
enables inter−controller wireless LAN roaming and controller redundancy. Refer to the
Configuring Mobility Groups section of Cisco Wireless LAN Controller Configuration
Guide, Release 7.0 for more information.
Q. What are the prerequisites for a Mobility Group?
A. Before you add controllers to a mobility group, you must verify that certain requirements
are met for all controllers that are to be included in the group. Refer to the Prerequisites
section of Configuring Mobility Groups for a list of these requirements.