Users Guide

In the CLI
To select the information to be sent in TSM report requests using the command-line interface, access the CLIin
config mode and issue the following command.
(host) (config)#wlan tsm-req-profile <profile>
BSSTransition Management (802.11v)
BSS Transition Management enables an AP to request a voice client to transition to a specific AP, or suggest a
set of preferred APs to a voice client, due to network load balancing or BSS termination. This helps the voice
client identify the best AP to which that client should transition to as that client roams. ArubaOS supports BSS
Transition Management features defined by the 802.11v standard.
The BSS Transition capability can improve throughput, data rates and QoS for the voice clients in a network by
shifting (via transition) the individual voice traffic loads to more appropriate points of association within the
ESS.
Frame Types
BSS Transition Management uses the following frame types:
l Query: A Query frame is sent by the voice client that supports BSS transition management requesting a
BSS transition candidate list to its associated AP, if the associated AP indicates that it supports the BSS
transition capability.
l Request: An AP that supports BSS Transition Management responds to a BSS Transition Management
Query frame with a BSS Transition Management Request frame. The AP may also send an unsolicited BSS
Transition Management Request frame to a voice client at any time, if the client supports the BSS Transition
Management capability. The Request frame also contains a Disassociation flag. If the flag is set, then the AP
forcefully disassociates the client after 10 beacon intervals.
l Response: A Response frame is sent by the voice client back to the AP, informing whether it accepts or
denies the transition.
802.11k and 802.11v Clients
For 802.11k capable clients, the client management framework uses the actual beacon report generated by the
client in response to a beacon report request sent by the AP. This beacon report replaces the virtual beacon
report for that client. For 802.11v capable clients, the controller uses the 802.11v BSS Transition message to
steer clients to the desired AP upon receiving a client steer trigger from the AP.
Enabling 802.11v BSS Transition Management
To enable 802.11v BSS transition management, enable the Advertise 802.11k Capability parameter in an
802.11k profile, then ensure that 802.11k profile is associated to a Virtual AP profile. For more information on
the 802.11k profile, see Radio Resource Management (802.11k) on page 418.
Fast BSS Transition ( 802.11r)
ArubaOS provides support for Fast BSS Transition as part of the 802.11r implementation. Fast BSS Transition
mechanism minimizes the delay when a voice client transitions from one BSS to another within the same ESS.
Fast BSS Transition establishes security and QoS states at the target AP before or during a re-association. This
minimizes the time required to resume data connectivity when a BSS transition happens.
The following table provides the modes in which Fast BSS Transition is supported:
Dell Networking W-Series ArubaOS 6.5.x | User Guide Virtual APs |
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