WESM zl Management and Configuration Guide WT.01.03 and greater

9-8
Fast Layer 2 Roaming and Layer 3 Mobility
Overview
Figure 9-2. Layer 2 and Layer 3 Roaming Domains
Roaming Behavior
This section summarizes which features you must configure on your Wireless
Edge Services zl Modules to enable the best possible roaming behavior in
various circumstances. Keep in mind that this section discusses the behavior
the modules support. Stations’ capabilities also affect roaming. For example,
the station’s wireless network interface card (NIC) determines when the
station will actually roam, and the station’s operating system (OS) determines
how long the station holds the IP stack if it loses the radio signal—even
temporarily.