Cisco Systems C3850NM410G Converged Access Network Design with Cisco Catalyst 3850

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Figure 8. Hierarchical Roles in Converged Access
The SPGs are designed as a group of mobility agent switches to where the users frequently roam. It is important
that roams within an SPG are local to the SPG and need not involve the mobility controller, whereas roams across
an SPG require traffic to traverse the mobility controller.
Converged Access Network Design with Cisco Catalyst 3850
If the wireless deployment consists of one Cisco Catalyst 3850 Switch operating as mobility controller as well as
mobility agent, which might be suited for a small branch type deployment, 50 Cisco access points and 2000 clients
are supported, as seen in Figure 9.