Sample Formulas for Usage Metrics for the SRC-VTA
Table 1 provides examples of usage formulas.
Table 1: Examples
of Formulas That Calculate Use of Network Resources
|
Formula
|
Description
|
Function
|
|
return <upStreamBytes> + <downStreamBytes>
|
Number of bytes sent and received by the subscriber.
|
Tracks volume of data that the subscriber transfers.
|
|
return 2*<upStreamBytes> + <downStreamBytes>
|
Twice the number of sent bytes plus the number of received
bytes.
|
Allows higher charges for subscribers who are operating
servers.
|
|
return <interimTime>
|
Time the subscriber is connected.
|
Tracks time that the subscriber connects rather than
volume of data transfer.
|
|
return <downStreamBytes>/<interimTime>
|
Rate of downstream data transfer.
|
Allows higher charges for higher transfer rates.
|
|
QuotaInternet formula:
return <upStreamBytes> + <downStreamBytes>– (<upStreamPackets>
+ <downStreamPackets>)*20
QuotaLocal formula:
return (<upStreamBytes> + <downStreamBytes>– (<upStreamPackets>
+ <downStreamPackets>)*20)/2
|
Formulas for separate, complementary services in a single
VTA.
The following expression returns the total number of bytes in
the IP headers of packets uploaded and downloaded by the service,
and as such is not subscriber data. It is not counted as usage.
(<upStreamPackets>+
<downStreamPackets>)*20
|
Provides support for two services: QuotaInternet for
Internet service and QuotaLocal for local service.
Allows higher charges for Internet service than for local service.
By allocating a fixed usage limit for both services to each subscriber,
encourages subscribers to access local resources due to decreased
cost.
|
