Controller teaming
Mobility support
8-26
Mobility support
Mobility support when controller teaming is active is very similar to mobility support on non-
teamed controllers. This section discusses the differences and configuration issues involved.
For an explanation of mobility concepts used in this section, see Chapter 9: Mobility traffic
manager on page 9-1.
The key benefit of using a team to provide a mobility solution is support for failover if the
primary mobility controller becomes inoperative. The following diagram shows two identical
setups, except that one is a team and the other is independent controllers.
In the controller team, the primary mobility controller is also the team manager. If the team
manager becomes inoperable, then controller 2 is automatically promoted to become the
interim manager and assumes the role of primary mobility controller as well.
If the primary mobility controller fails in the independent controllers setup, mobility services
are interrupted until you manually reconfigure controller 2 as the primary mobility controller.
1
Primary
mobility
controller
L3 switch
2
W
L
A
N
1
W
L
A
N
2
1
Primary
mobility
controller
L3 switch
2
W
L
A
N
1
W
L
A
N
2
Controller team Independent controllers
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