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Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
Chapter 7 Configuring the ATM SPAs
Configuration Tasks
You can configure a PVC for only one QoS service class. If you enter more than one type, only the most
recently configured QoS class takes effect on the circuit.
To configure the traffic parameters for a PVC, perform the following procedure beginning in global
configuration mode:
Command or Action Purpose
Step 1
Router(config)# interface atm slot/subslot/port ï€
or ï€
Router(config)# interface atm
slot/subslot/port.subinterface [multipoint |
point-to-point]
Enters interface or subinterface configuration mode for
the indicated port on the specified ATM SPA, where:
• slot—Specifies the chassis slot number in the
Cisco ASR 1000 Series Router where the SIP is
installed.
• subslot—Specifies the secondary slot of the SIP
where the SPA is installed.
• port—Specifies the number of the individual
interface port on a SPA.
• subinterface—Specifies the number of the
subinterface.
Step 2
Router(config-if)# pvc [name] vpi/vci Specifies the PVC to be configured, and enters PVC
configuration mode, where:
• name—(Optional) An arbitrary string that
identifies this PVC.
• vpi—Specifies the VPI ID. The valid range is 0 to
255.
• vci—Specifies the VCI ID. The valid range is 32 to
65535. Values 1 to 31 are reserved and should not
be used, except for 5 for the QSAAL PVC and 16
for the ILMI PVC. ILMI is unsupported on the
Cisco ASR 1000 Series Routers.
Note When using the pvc command, remember that the vpi/vci combination forms a unique identifier for the
interface and all of its subinterfaces. If you specify a vpi/vci combination that has been used on another
subinterface, the Cisco
IOS XE software assumes that you want to modify that PVC’s configuration and
automatically switches to its parent subinterface.
Step 3
Router(config-if-atm-vc)# cbr rate Configures constant bit rate (CBR) quality of service
(QoS) and average cell rate for the PVC:
• rate—Average cell rate in kbps. The valid range is
48 to 149760 (OC-3) or 599040 (OC-12).
or
Router(config-if-atm-vc)# ubr output-pcr Configures unspecified bit rate (UBR) quality of
service (QoS) and peak cell rate (PCR) for the PVC:
• output-pcr—Output PCR in kbps. The valid range
is 48 to 149760 (OC-3) or 599040 (OC-12).
or