User's Manual Part 1

4 - 10 WT6000 User Guide
• Opportunistic Key Caching - Use this feature to skip 802.1x authentication during roaming. The device will
go for full 802.1x authentication for the first time it connects to the network. For subsequent roaming, the
device skips 802.1x authentication. Default: enabled.
• Cisco Centralized Key Management - Allows the device to skip 802.1x and key-handshake phases during
roaming. This feature is available only when the device is connected to a Cisco infrastructure that supports
Cisco Centralized Key Management (CCKM). Default: enabled.
• Fast Transition - Fast Transition (FT) is the fast roaming standard, 802.11r. With this feature, the device can
skip 802.1x and key-handshake phases during roam. Default: enabled.
• Fast Transition Resource Information Container - Allows the device to request TSPEC as part of
reassociation frame exchange. This helps to avoid sending a separate resource request after roaming is
completed. Default: disabled.
• Power Save - The device can be configured to work in different power save modes:
• Active - Keeps the WLAN radio always in active mode (i.e. power save mode disabled).
• Power save using WMM-PS - This is the default power save mode. Device uses WMM-PS power save
method if the AP is configured to use this. If the AP is not supporting WMM-PS, the device will use PS-Poll
power save method.
• Power save using PS-Poll - In this method, the device will use PS-Poll frames to retrieve buffered frames
from the AP.
• Null Data Power Save - In Null Data Power Save (NDP), the device will stay awake for 100 ms after the
last frame is sent or received. The device will send a Null Data packet with power management bit cleared
to retrieve buffered frames from the AP.
• 802.11k - Using 802.11k, the device can discover neighbor APs and adds support for different types of radio
resource measurements. Default: enabled.
• Band Preference - The device can be configured to prefer one band over another. By default, device prefers
5 GHz frequency band over 2.4 GHz.
• Subnet Roaming - When the device roams between different sub networks, if it detects that it is roaming to
a different subnet, the device will request a fresh IP address. Default: disabled.
Zebra Mobility Extensions
Zebra Mobility Extensions make use 802.11 specifications and Zebra proprietary extensions to achieve the highest
level of performance, efficiency and reliability. The WT6000 adds support for the following Zebra Mobility
Extensions.
• Coverage Hole Detection - The WT6000 includes enhancements to the IEEE 802.11k standard. These
improvements will report gaps in signal coverage to the Zebra wireless LAN infrastructure. Network
administrators can detect and mitigate coverage gaps present in the network for greater reliability. Default:
enabled.
• Aggregated Fast Transition - Aggregated FT improves on IEEE 802.11r, Over-the-DS fast roaming. In
conjunction with Zebra wireless LAN infrastructure, the WT6000 will achieve more reliable and consistent
fast roaming. Default: enabled.
• Scan Assist - The WT6000 monitors neighbor access points and retrieves roaming related information from
the Zebra wireless LAN infrastructure without doing scans. Using this Scan Assist feature, the WT6000
improves roaming. Default: enabled.