Avaya Configuring ATM Services Manual de usuario Pagina 329

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Site Manager Parameters
308612-14.00 Rev 00
A-31
Parameter: Recv Sustainable Cell Rate (cells/s)
Path: Configuration Manager > Circuits > Edit Circuits > Edit > ATM > Service
Attributes > WAN SVC
Default: 4176
Options: 0, 128 to 353207 (ATM ARE OC-3 SONET/SDH ILI pairs and
Model 5782 ATM routers)
0, 128 to 96000 (ATM ARE DS-3 ILI pairs)
0, 128 to 80000 (ATM ARE E-3 ILI pairs; G.832 framing mode)
0, 128 to 72000 (ATM ARE E-3 ILI pairs; G.751 framing mode)
Function: Specifies the upper limit of the ATM connection conforming average rate. The
average rate equals the total number of cells received, divided by the duration of
the connection.
Using the sustainable cell rate (SCR), you can define the future cell flow of a
VC in greater detail than by using only the peak cell rate.
For ATM ARE ILI pairs and Model 5782 ATM routers, the SCR maps directly
to the minimum cell rate (MCR). The MCR defines the minimum amount of
guaranteed bandwidth allowed for SVCs on the ATM line.
When setting the SCR, keep the following in mind:
The SCR maps directly to the MCR.
The MCR allows sufficient bandwidth for SVCs to operate.
To be useful, the SCR must not exceed the PCR.
If you know the average rate, set the SCR approximately 10 percent higher
than this value.
VCs may fail to operate with SCR values lower than 128 cells/s.
Entering 0 for the SCR turns off this function.
The E-3 framing mode setting affects the maximum SCR.
Instructions: After you determine the receive rate of your ATM device, set the sustainable cell
rate within the specified range. Enter 0 to turn off this function.
MIB Object ID: 1.3.6.1.4.1.18.3.4.23.1.5.1.9
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