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Brocade Mobility RFS Controller CLI Reference Guide (Supporting software release 5.5.0.0 and later) User Manual

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Brocade Mobility RFS Controller CLI Reference Guide

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Enabling WMM support on a WLAN just advertises the WLAN’s WMM capability and radio
configuration to wireless clients. The wireless clients must also support WMM and use the values
correctly while accessing the WLAN to benefit.

WMM includes advanced parameters (CWMin, CWMax, AIFSN and TXOP) specifying back-off
duration and inter-frame spacing when accessing the network. These parameters are relevant to
both connected access point radios and their wireless clients. Parameters impacting access point
transmissions to their clients are controlled using per radio WMM settings, while parameters used
by wireless clients are controlled by a WLAN’s WMM settings.

Brocade controllers (access points, wireless controllers, and service platforms) include a Session
Initiation Protocol
(SIP), Skinny Call Control Protocol (SCCP) and Application Layer Gateway (ALG)
enabling devices to identify voice streams and dynamically set voice call bandwidth.

Brocade controllers support static QoS mechanisms per WLAN to provide prioritization of WLAN
traffic when legacy (non WMM) clients are deployed. When enabled on a WLAN, traffic forwarded to
a client is prioritized and forwarded based on the WLAN’s WMM access control setting.

NOTE

Statically setting a WLAN WMM access category value only prioritizes traffic to the client.

Wireless network administrators can also assign weights to each WLAN in relation to user priority
levels. The lower the weight, the lower the priority. Use a weighted technique to achieve different
QoS levels across WLANs.

Brocade devices rate-limit bandwidth for WLAN sessions. This form of per-user rate limiting enables
administrators to define uplink and downlink bandwidth limits for users and clients. This sets the
level of traffic a user or client can forward and receive over the WLAN. If the user or client exceeds
the limit, excessive traffic is dropped.

Rate limits can be applied to WLANs using groups defined locally or externally from a RADIUS
server using Brocade Vendor Specific Attributes (VSAs). Rate limits can be applied to users
authenticating using 802.1X, captive portal authentication, and devices using MAC authentication.

Use the (config) instance to configure radios QoS policy related configuration commands. To
navigate to the
radio QoS policy instance, use the following commands:

(config)#radio-qos-policy

rfs7000-37FABE(config)#radio-qos-policy test

rfs7000-37FABE(config-radio-qos-test)#?

Radio QoS Mode commands:

accelerated-multicast Configure multicast streams for acceleration

admission-control Configure admission-control on this radio for one or

more access categories

no Negate a command or set its defaults

smart-aggregation Configure smart aggregation parameters

wmm Configure 802.11e/Wireless MultiMedia parameters

clrscr Clears the display screen

commit Commit all changes made in this session

do Run commands from Exec mode

end End current mode and change to EXEC mode

exit End current mode and down to previous mode

help Description of the interactive help system

revert Revert changes

service Service Commands

show Show running system information