Configuring A Wlan's Qos Rate Limit Settings - Motorola WiNG 5 System Reference Manual

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6.2.2 Configuring a WLAN's QoS Rate Limit Settings

Excessive traffic can cause performance issues or bring down the network entirely. Excessive traffic can be caused
by numerous sources including network loops, faulty devices or malicious software such as a worm or virus that has
infected on one or more devices at the branch. Rate limiting limits the maximum rate sent to or received from the
wireless network (and WLAN) per wireless client. It prevents any single user from overwhelming the wireless
network. It can also provide differential service for service providers. The uplink and downlink rate limits are usually
configured on a RADIUS server using vendor specific attributes. An administrator can set separate QoS rate limit
configurations for data transmitted from the access point (upstream) and data transmitted from a WLAN's wireless
clients back to their associated access point radios (downstream). AP-6511 and AP6521 model access points do not
support rate limiting on an individual client basis.
Before defining rate limit thresholds for WLAN upstream and downstream traffic, Motorola Solutions recommends
you define the normal number of ARP, broadcast, multicast and unknown unicast packets that typically transmit and
receive from each supported WMM access category. If thresholds are defined too low, normal network traffic
(required by end-user devices) is dropped, resulting in intermittent outages and performance problems.
To configure a QoS rate limit configuration for a WLAN and connected clients:
1. Select Configuration
2. Either select the
to modify its existing configuration.
> Wireless > WLAN QoS Policy
Add button to define a new WLAN QoS policy, or select an existing WLAN QoS policy and
to display existing QoS policies available to WLANs.
Edit