Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 348)

336 Brocade Mobility RFS Controller System Reference Guide
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2. Refer to the following configuration data for existing Smart RF policies:
3. Select the Add button to define a new Mesh QoS policy, or select an existing Mesh QoS policy
and select Edit to modify its existing configuration. Existing QoS policies can be selected and
deleted as needed.
The Rate Limit screen displays by default for the new or modified QoS policy.
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 mesh point) per neighbor. It prevents any single user from
overwhelming the wireless network. It can also provide differential service for service
providers. An administrator can set separate QoS rate limit configurations for data
transmitted from the network and data transmitted from a mesh point’s neighbor back to
their associated Access Point radios and managing controller or service platform.
Before defining rate limit thresholds for mesh point transmit and receive traffic, Brocade
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.
A connected neighbor can also have QoS rate limit settings defined in both the transmit
and receive direction.
Mesh QoS Policy Displays the administrator assigned name of each mesh QoS policy.
Mesh Tx Rate Limit Displays whether or not a Mesh Tx Rate Limit is enabled for each Mesh QoS policy. When the rate
limit is enabled a green check mark is displayed, when it is disabled a red X is displayed.
Mesh Rx Rate Limit Displays whether or not a Mesh Rx Rate Limit is enabled for each Mesh QoS policy. When the rate
limit is enabled a green check mark is displayed, when it is disabled a red X is displayed.
Neighbor Rx Rate Limit Displays whether or not a Neighbor Rx Rate Limit is enabled for each Mesh QoS policy. When the
rate limit is enabled a green check mark is displayed, when it is disabled a red X is displayed.
Neighbor Tx Rate Limit Displays whether or not a Neighbor Tx Rate Limit is enabled for each Mesh QoS policy. When the
rate limit is enabled a green check mark is displayed, when it is disabled a red X is displayed.
Classification Displays the forwarding QoS classification for each Mesh QoS policy. Classification types are Trust,
Voice, Video, Best Effort and Background.