Administrator’s Handbook
150
DSL Commands
ATM Settings.
You can use the CLI to set up each ATM vir tual circuit.
set atm option {on | off }
Enables the WAN inter face of the Motorola Netopia
®
Gateway to be configured using the Asynchronous
Transfer Mode (ATM) protocol.
set atm [vcc
n
] option {on | off }
Selects the vir tual circuit for which fur ther parameters are set. Up to eight VCCs are suppor ted; the
maximum number is dependent on your Motorola Netopia
®
Operating System tier and the capabilities
that your Ser vice Provider offers.
set atm [vcc
n
] qos service-class { cbr | ubr | vbr }
Sets the Quality of Ser vice class for the specified vir tual circuit – Constant (
cbr
), Unspecified (
ubr
), or
Variable (
vbr
) Bit Rate.
❑
ubr
: No configuration is needed for UBR VCs. Leave the default value 0 (maximum line rate).
❑
cbr
: One parameter is required for CBR VCs. Enter the
Peak Cell Rate
that applies to the VC. This
value should be between 1 and the line rate. You set this value according to specifications defined
by your ser vice provider.
❑
vbr
: Three parameters are required for VBR VCs. Enter the
Peak Cell Rate
, the
Sustained Cell
Rate
, and the
Maximum Burst Size
that apply to the VC. You set these values according to specifi-
cations defined by your ser vice provider.
set atm [vcc
n
] qos peak-cell-rate { 1 ...
n
}
If QoS class is set to
cbr
or
vbr
then specify the
peak-cell-rate
that should apply to the specified vir-
tual circuit. This value should be between 1 and the line rate.
The Peak Cell Rate (PCR) should be set to the maximum rate a PVC can oversubscribe its Sustained
Cell Rate (SCR). The Peak Cell Rate (see below) must be less than, or equal to the raw WAN (DSL) bit
rate. The Maximum Burst Size (MBS) is the number of cells that can be sent at the PCR rate, after
which the PVC must fall back to the SCR rate.
set atm [vcc
n
] qos sustained-cell-rate { 1 ...
n
}
If QoS class is set to
vbr
, then specify the
sustained-cell-rate
that should apply to the specified vir-
tual circuit. This value should be less than, or equal to the Peak Cell Rate, which should be less than,
or equal to the line rate.
set atm [vcc
n
] qos max-burst-size { 1 ...
n
}
If QoS class is set to
vbr
then specify the
max-burst-size
that should apply to the specified vir tual cir-
cuit. This value is the maximum number of cells that can be transmitted at the Peak Cell Rate after
which the ATM VC transmission rate must drop to the Sustained Cell Rate.
set atm [vcc
n
] vpi { 0 ... 255 }
Select the vir tual path identifier (vpi) for VCC n.
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