R0106-HP MSR Router Series Layer 2 - WAN Command Reference(V7)

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Interface type Peak output rate value range

ATM E3 64 to 34000

ATM T3 64 to 44000

ATM OC-3c/STM-1 64 to 155000

ATM OC-12c/STM-4 Not supported

ATM 25M Not supported

ATM subinterface

Same as that of the ATM interface to which the ATM

subinterface belongs.

PVC-group

Same as that of the ATM interface to which the

PVC-group belongs.

cdvt cdvt_value: Specifies the cell delay variation tolerance in the range of 0 to 10000 μs. The default is

500 μs, which means that the maximum cell delay is 500 μs.

Usage guidelines

When the peak output rate is exceeded, the system allocates caches based on the specified CDVT value

to ensure service stability. A smaller CDVT value requires more hardware resources, and is harder to

configure. If the configuration fails, the following message appears: "Failed to set service parameter.

Please adjust cdvt value." In such a case, configure a larger CDVT value.

You can use this command as well as the service ubr, service vbr-nrt, and service vbr-rt commands to set

the service type and rate of a PVC. A newly configured PVC service type overwrites the existing one.

Each PVC occupies a separate bandwidth. HP recommends configuring PVCs requiring more

bandwidths first.

This command is not applicable to ATM E1 and ATM E3 interfaces.

Examples

# Create a PVC named aa on interface ATM 2/4/0, specifying its VPI/VCI value as 1/101, service type

as CBR, output peak cell rate as 50000 kbps, and CDVT value as 1000 μs.

<Sysname> system-view

[Sysname] interface atm 2/4/0

[Sysname-ATM2/4/0] pvc aa 1/101

[Sysname-ATM2/4/0-pvc-aa-1/101] service cbr 50000 cdvt 1000

# Create a PVC named aa in PVC-group 1, specifying its VPI/VCI value as 1/101, service type as CBR,

output peak cell rate as 50000 kbps, and CDVT value as 1000 μs.

<Sysname> system-view

[Sysname] interface atm 2/4/0

[Sysname-ATM2/4/0] pvc-group 1

[Sysname-ATM2/4/0-pvc-group-1] pvc aa 1/101

[Sysname-ATM2/4/0-pvc-group-1-pvc-aa-1/101] service cbr 50000 cdvt 1000

Related commands

• service ubr

• service vbr-nrt

• service vbr-rt