Network Router User Manual

11 High-speed ATM configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
11-12 Nortel Networks Inc. Issue 5.3 (
30 March 2009)
No. Data
4 cbr: Peak rate of outputting ATM cells, variation range of cell delays
5 vbr: Peak rate of outputting ATM cells, maintainable rate and the maximum burst
size
6 vbr-rt: Peak rate of outputting ATM cells, maintainable rate and the maximum
burst size
Configuration procedures
No. Procedure
1 Configuring the service type of a PVC
2 Configuring the service type of a PVP
3 Checking the configuration
11.4.2 Configuring the service type of a PVC
Do as follows on the routers:
Step 1 Run:
system-view
The system view appears.
Step 2 Run:
interface atm interface-number[.subinterface ]
The ATM interface or the sub-interface view appears.
Step 3 Run:
pvc { pvc-name vpi/vci | vpi/vci }
The command creates a PVC and the PVC view appears.
Step 4 Choose the following steps to configure the service type of the PVC and related rate
parameters.
z
Run the service cbr output-pcr [ cdvt cdvt-value ] command to configure the service
type as Constant Bit Rate (CBR).
z
Run the service ubr command to configure the service type as Unspecified Bit Rate
(UBR).
z
Run the service vbr-nrt output-pcr output-scr output-mbs [ cdvt cdvt-value ]
z
command to configure the service type as Variable Bit Rate-Non Real Time (VBR-NRT).
z
Run the service vbr-rt output-pcr output-scr output-mbs [ cdvt cdvt-value ] command to
configure the service type as Variable Bit Rate-Real Time (VBR-RT).
By default, the service type of PVC is UBR.