Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 347)

Brocade Mobility RFS Controller System Reference Guide 335
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Define both minimum Basic and optimal Supported rates as required for the 802.11b
rates, 802.11g rates and 802.11n rates supported by the 2.4 GHz band and 802.11a and
802.11n rates supported by the 5.0 GHz radio band. These are the rates wireless client
traffic is supported within this mesh point.
If supporting 802.11n, select a Supported MCS index. Set a MCS (modulation and coding
scheme) in respect to the radio’s channel width and guard interval. A MCS defines (based
on RF channel conditions) an optimal combination of 8 data rates, bonded channels,
multiple spatial streams, different guard intervals and modulation types. Clients can
associate as long as they support basic MCS (as well as non-11n basic rates).
12. Select OK to save the changes made to the configuration. Select Reset to revert to the last
saved configuration.
Mesh QoS Policy
Mesh Quality of Service (QoS) provides a data traffic prioritization scheme. QoS reduces
congestion from excessive traffic. If there is enough bandwidth for all users and applications
(unlikely because excessive bandwidth comes at a very high cost), then applying QoS has very little
value. QoS provides policy enforcement for mission-critical applications and/or users that have
critical bandwidth requirements when bandwidth is shared by different users and applications.
Mesh QoS helps ensure each mesh point on the mesh network receives a fair share of the overall
bandwidth, either equally or as per the proportion configured. Packets directed towards clients are
classified into categories such as video, voice and data. packets within each category are
processed based on the weights defined for each mesh point.
The Quality of Service screen displays a list of Mesh QoS policies available to mesh points. Each
mesh QoS policy can be selected to edit its properties. If none of the exiting Mesh QoS policies
supports an ideal QoS configuration for the intended data traffic of this mesh point, select the Add
button to create new policy. Select an existing mesh QoS policy and select Edit to change the
properties of the Mesh QoS policy.
To define a Mesh QoS policy:
1. Select Configuration > Wireless > Mesh QoS Policy to display existing Mesh QoS policies.
FIGURE 51 Mesh QoS Policy screen