Avaya Configuring ATM Services Manual de usuario Pagina 165

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Customizing Signaling
308612-14.00 Rev 00
4-49
Setting the SCR
The sustainable cell rate (SCR) is the upper bound on the conforming average rate
of an individual PVC or control VC. The average rate is the number of cells
transmitted over the link divided by the duration of the connection. The duration
of the connection is the total amount of time it takes from connection setup to
connection release.
By default, the SCR is set to 4716 cells/s. Table 4-3
lists the valid ranges for each
Nortel Networks ATM router. To disable the SCR, set the value to 0.
For additional information about the SCR, see “Using the SCR” on page 1-25.
Using the BCC
To change the SCR value for signaling VCs, navigate to the signaling VC prompt
(for example,
box; atm/11/1; signaling/11/1; signaling-vc/11/1/0/5
) and enter:
scr
<integer>
integer
is the SCR value that you want the signaling VC to use.
For example, the following command changes the signaling VC SCR value to
8000:
signaling-vc/11/1/0/5#
scr 8000
signaling-vc/11/1/0/5#
Table 4-3. Valid SCR Ranges
ATM Router Range (Cells/s)
ATM ARE OC-3 SONET/SDH ILI pairs 0, 128 to 353,207
Model 5782 0, 128 to 353,207
ATM ARE DS-3 ILI pairs 0, 128 to 96,000
ATM ARE E-3 ILI pairs; G.832 framing mode 0, 128 to 80,000
ATM ARE E-3 ILI pairs; G.751 framing mode 0, 128 to 72,000
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