Notes And Reference; Notes; Table 5: Notes First Discussed With Release 10.3.1 - Motorola PMP 100 Release Notes And User Manual Supplement

Release 10.5

7 Notes and Reference

7.1

NOTES

Notes and tips for best operation are listed in
Products Description
Affected
PMP 430 PMP 430 SM
used with MIR configured
Prizm or by Prizm to
BAM greater than max
sustained MIR
data rate (12257)
FCC Draft, November 2010
Table 5,

Table 5: Notes first discussed with Release 10.3.1

Discussion and Recommendations
If the Configuration Source on a PMP 430 AP's Configuration > General
tab is set to Authentication Server or Authentication Server + SM,
SMs will receive their MIR settings from Prizm (or BAM). The resulting SM
MIR may be greater than the keyed throughput of the SM. For context, the
PMP 430 SM is available keyed to have a maximum throughput of 4, 10,
20 or 40 Mbps.
If the SM receives a MIR setting from Prizm that is greater than the keyed
bandwidth, the SM will cap the MIR using this formula:
(desired uplink MIR * SM aggregate capped rate) / desired aggregate rate
(desired downlink MIR * SM aggregate capped rate) / desired aggregate rate
Note: Desired aggregate rate is the sum of the desired uplink rate and desired
downlink rate
For example, if a PMP 430 4 Mbps SM with a max MIR cap of 4000
receives a MIR setting from Prizm that is greater than 4000 kbps, it will
cap the downlink MIR and the uplink MIR to equal a max of 4000 kbps.
Below is an example with Prizm settings of 10000 kbps uplink MIR and
7000 downlink MIR sent to a 4 Mbps SM that is capped at 4000 kbps max
MIR:
Uplink calculation:
(10000 * 4000) / (7000 + 10000) = 2352 kbps
Downlink calculation:
Thus the Uplink MIR of 2352 + Downlink MIR of 1648 = 4000 kbps
In this example, the PMP 430 AP sessions page will display a SM uplink
and downlink MIR SMCAP as shown below.
For reference, the max SM MIR in kbps for each SM type is:
4 Mbps SM = 4000
10 Mbps SM = 10000
20 Mbps SM = 20000
40 Mbps SM = 65535 (displays Unlimited in the Home > General Status tab)
Release Notes and User Guide Supplement
and Table 6.
(7000 *4000) / (7000 + 10000) = 1648 kbps
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