Motorola AP-6511 Reference Manual page 176

Motorola Solutions AP-6511 Access Point System Reference Guide
4. Configure the following parameters in respect to the intended
Enable
Rate
Maximum Burst
Size
5. Set the following
An early random drop is done when the amount of tokens for a traffic stream falls below the set
threshold.
Background Traffic
Best Effort Traffic
6-42
Select the Enable radio button to enable rate limiting for data transmitted
from Access Point radios to associated wireless clients. Enabling this
option does not invoke rate limiting for data traffic in the downstream
direction. This feature is disabled by default.
Define an upstream rate limit between 50 - 1,000,000 kbps.This limit
constitutes a threshold for the maximum the number of packets
transmitted or received over the WLAN (from all access categories). Traffic
that exceeds the defined rate is dropped and a log message is generated.
The default setting is 5000 kbps.
Set a maximum burst size between 2 - 1024 kbytes. The smaller the burst,
the less likely the upstream packet transmission will result in congestion
for the WLANs wireless client destinations. By trending the typical number
of ARP, broadcast, multicast and unknown unicast packets over a period of
time, the average rate for each access category can be obtained. Once a
baseline is obtained, administrators should then add a minimum of a 10%
margin to allow for traffic bursts at the site. The default burst size is 320
kbytes.
Upstream Random Early Detection Threshold
Set a percentage value for background traffic in the upstream direction.
This is a percentage of the maximum burst size for low priority traffic.
Background traffic exceeding the defined threshold is dropped and a log
message is generated. Background traffic consumes the least bandwidth
of any access category, so this value can be set to a lower value once a
general upstream rate is known by the network administrator (using a time
trend analysis). The default threshold is 50%.
Set a percentage value for best effort traffic in the upstream direction. This
is a percentage of the maximum burst size for normal priority traffic. Best
effort traffic exceeding the defined threshold is dropped and a log message
is generated. Best effort traffic consumes little bandwidth, so this value
can be set to a lower value once a general upstream rate is known by the
network administrator (using a time trend analysis). The default threshold
is 50%.
WLAN Upstream Rate Limit.
settings for each access category.