User guide

March 2005 Building Your Canopy Network
Through Software Release 6.1
Page 192 of 425 Issue 1
Canopy System User Guide
Wherever you wish to implement the high-priority channel, you must set all high-priority
parameters. If all are not set, then the high-priority channel is not active.
Slot Specifications
The recommended settings for slot specification parameters are provided in Table 40.
Table 40: Slot settings for all APs in cluster, based on traffic type
Recommended Setting
1
Parameter
Without High-priority
Channel Enabled
With High-priority
Channel Enabled
2
Total NumUAckSlots
3 6
UAcks Reserved High
0 3
NumDAckSlots
3 6
DAcks Reserved High
0 3
NumCtlSlots
3
3
6
4
NumCtlSlots Reserved High
0 3
NOTES:
1. To avoid self-interference, for each of these six parameters, the value
must be identical in all APs in a cluster.
2. Presumes that equipment is configured to set the low-latency ToS bit.
3. Where congestion occurs from the control overhead in predominantly
small packets, setting this parameter to 4 may be better.
4. Where congestion occurs from the control overhead in predominantly
small packets, setting this parameter to 7 may be better.
With Hardware Scheduler, the recommended number of control slots is as stated in
Table 41.
Table 41: Control slot settings for all APs in cluster with Hardware Scheduler
Number of SMs that
Register to the AP
Number of Control
Slots Recommended
1 to 10 0
11 to 50 1
51 to 150 2
151 to 200 3
With Software Scheduler, the recommended number of control slots reverts to what is
stated in Table 40.
Total NumUAckSlots
Specify how many slots to use to acknowledge data that an SM receives. The default
value of this parameter is 3. See Slot Specifications above.