Motorola WiNG 5.5 Reference Manual page 484

6 - 58 WiNG 5.5 Access Point System Reference Guide
Maximum Burst Size
11. Set the following
drop is conducted when the amount of tokens for a traffic stream falls below the set threshold for wireless client traffic.
Background Traffic
Best Effort Traffic
Video Traffic
Voice Traffic
12. Configure the following intended
Enable
Rate
Set a maximum burst size from 2 - 1024 kbytes. The smaller the burst, the less likely the
upstream packet transmission will result in congestion for wireless client traffic. 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 64 kbytes.
Upstream Random Early Detection Threshold
Set a percentage for client 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 for client 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%.
Set a percentage for client video traffic in the upstream direction. This is a percentage of
the maximum burst size for video traffic. Video traffic exceeding the defined threshold is
dropped and a log message is generated. Video traffic consumes significant bandwidth,
so this value can be set to a higher value once a general upstream rate is known by the
network administrator (using a time trend analysis). The default threshold is 25%.
Set a percentage for WLAN voice traffic in the upstream direction. This is a percentage of
the maximum burst size for voice traffic. Voice traffic exceeding the defined threshold is
dropped and a log message is generated. Voice applications consume significant
bandwidth, so this value can be set to a higher value once a general upstream rate is
known by the network administrator (using a time trend analysis). The default threshold
is 0%.
Downstream Rate Limit
Select this 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 upstream direction. This feature is disabled by default.
Define an upstream rate limit from 50 - 1,000,000 kbps. This limit constitutes a threshold
for the maximum the number of packets transmitted or received from clients. Traffic that
exceeds the defined rate is dropped and a log message is generated. The default setting
is 1,000 kbps.
settings for each access category. An early random
parameters for wireless client traffic: