Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 323)

Brocade Mobility RFS Controller System Reference Guide 311
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4. Set the following Voice Access settings for the Radio QoS policy:
5. Set the following Normal (Best Effort) Access settings for the radio QoS policy:
6. Set the following Video Access settings for the Radio QoS policy:
Transmit Ops Use the slider to set the maximum duration a device can transmit after obtaining a transmit
opportunity. When resources are shared between a Voice over IP (VoIP) call and a low priority file
transfer, bandwidth is normally exploited by the file transfer, thus reducing call quality or even
causing the call to disconnect. With voice QoS, a VoIP call (a real-time session), receives priority,
maintaining a high level of voice quality. For higher-priority traffic categories (like voice), the
Transmit Ops value should be set to a low number. The default value is 47.
AIFSN Set the current AIFSN between 1-15. Higher-priority traffic voice categories should have lower
AIFSNs than lower-priority traffic categories. This will cause lower-priority traffic to wait longer
before attempting access. The default value is 1.
ECW Min The ECW Min is combined with the ECW Max to create a contention value in the form of a numerical
range. From this range, a random number is selected for the back off mechanism. Lower values are
used for higher priority traffic. The available range is from 0-15. The default value is 2.
ECW Max The ECW Max is combined with the ECW Min to create a contention value in the form of a numerical
range. From this range, a random number is selected for the back off mechanism. Lower values are
used for higher priority traffic. The available range is from 0-15. The default value is 3.
Transmit Ops Use the slider to set the maximum duration a device can transmit after obtaining a transmit
opportunity. For higher-priority traffic categories, this value should be set to a low number. The
default value is 0.
AIFSN Set the current AIFSN between1-15. Lower priority traffic categories should have higher AIFSNs
than higher priority traffic categories. This will cause lower priority traffic to wait longer before
attempting access. The default value is 3.
ECW Min The ECW Min is combined with the ECW Max to create a contention value in the form of a numerical
range. From this range, a random number is selected for the back off mechanism. Higher values
are used for lower priority traffic (like Normal). The available range is from 0-15. The default value is
4.
ECW Max The ECW Max is combined with the ECW Min to create a contention value in the form of a numerical
range. From this range, a random number is selected for the back off mechanism. Higher values
are used for lower priority traffic (like Normal). The available range is from 0-15. The default value is
6.
Transmit Ops Use the spinner control to set the maximum duration a radio can transmit after obtaining a
transmit opportunity. For higher-priority traffic categories (like video), this value should be set to a
low number. The default value is 94.
AIFSN Set the current AIFSN between 1-15. Higher-priority traffic categories should have lower AIFSNs
than lower-priority traffic categories. This will cause lower-priority traffic to wait longer before
attempting access. The default value is 1.
ECW Min The ECW Min is combined with the ECW Max to create a contention value in the form of a numerical
range. From this range, a random number is selected for the back off mechanism. Lower values are
used for higher priority traffic (like video). The available range is from 0-15. The default value is 3.
ECW Max The ECW Max is combined with the ECW Min to create a contention value in the form of a numerical
range. From this range, a random number is selected for the back off mechanism. Lower values are
used for higher priority traffic (like video). The available range is from 0-15. The default value is 4.