3Com MSR 30, MSR 50 Service vbr-rt, Related command service ubr, service vbr-rt, and service cbr

312CHAPTER 19: ATM CONFIGURATION COMMANDS

Parameter output-pcr: Peak rate of ATM cell output in kbps. For the value ranges of this parameter, see Table 30.

output-scr: Sustainable rate of ATM cell output in kbps. Its value ranges are the same as those of output-pcr.

output-mbs: Maximum burst size for ATM cell output, that is, the maximum number of ATM cells that the output interface can cache. The value ranges from 1 to 512.

Description Use the service vbr-nrtcommand to specify the service type of PVC as variable bit rate-non real time (VBR-NRT) and specify the related rate parameters.

By default, the service type is UBR after creating a PVC.

You can use this command as well as the service ubr, service vbr-rtand service cbr commands to set the service type and rate-related parameters of a PVC. A newly configured PVC service type overwrites the existing one.

Related command: service ubr, service vbr-rt, and service cbr.

Example # Create a PVC named “aa”, with the VPI/VCI value of 1/101.

<Sysname> system-view

[Sysname] interface atm 1/0

[Sysname-Atm1/0] pvc aa 1/101

#Specify the service type of the PVC as VBR-NRT and set the peak bit rate of ATM cell to 100,000 kbps, the sustainable bit rate to 50,000 kbps and the maximum burst size to 320 cells.

[Sysname-atm-pvc-Atm1/0-1/101-aa] service vbr-nrt 100000 50000 320

service vbr-rt

Syntax service vbr-rtoutput-pcr output-scr output-mbs

View PVC view/ATM Class view

Parameter output-pcr: Peak cell rate of ATM output in kbps. For the value ranges of this parameter, see Table 30.

output-scr: Sustainable cell rate of ATM output in kbps. Its value ranges are the same as those of output-pcr.

output-mbs: Maximum burst size of ATM cell output, that is, the maximum cache size of ATM cell output at the interface in cell number. The range of the value is 1 to 512. When it is used in ATM E3 interface, the range of the parameter is 1 to 512.