Motorola WiNG 5 System Reference Manual page 402

6 - 54 WiNG 5 Access Point System Reference Guide
Rate
Maximum Burst
Size
5. Set the following
random drop is conducted when the amount of tokens for a traffic stream falls below the set threshold for the
selected WLAN.
Background Traffic
Best Effort Traffic
Video Traffic
Voice Traffic
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
exceeding 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 WLAN's 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 WLAN 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 WLAN 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 value for WLAN 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 value 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%.
settings for each access category. An early