Setup guide

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Cisco 6400 Software Setup Guide
OL-1183-04
Chapter3 Basic NRP Configuration
Permanent Virtual Circuits
Verifying PVC Discovery
To verify successful configuration of PVC discovery, use the show atm vc interface atm 0/0/0 EXEC
command. Discovered interfaces appear with the “PVC-D” type.
Router# show atm vc interface atm 0/0/0
VCD / Peak Avg/Min Burst
Interface Name VPI VCI Type Encaps SC Kbps Kbps Cells Sts
0/0/0 1 0 16 PVC ILMI UBR 155000 UP
0/0/0.1 2 1 32 PVC-D MUX UBR 155000 UP
0/0/0.1 3 1 33 PVC-D MUX UBR 155000 UP
0/0/0.2 4 2 32 PVC-D MUX UBR 155000 UP
0/0/0.2 5 2 33 PVC-D MUX UBR 155000 UP
Router#
Configuring PVC Traffic Shaping
The NRP-1 supports the unspecified bit rate (UBR) and variable bit rate nonreal time (VBR-NRT)
quality of service (QoS) classes.
Note Only one QoS class can be specified per PVC. When you enter a new QoS class, it replaces the existing
one.
The NRP-2SV supports the VBR-NRT QoS class. When using VBR-NRT on the NRP-2SV, you may
need to modify the ATM SAR transmission ring limit to provide more buffering space and time for
packets on one or more VCs. For more information, see the tx-ring-limit command reference entry in
the Cisco 6400 Command Reference.
Note The NRP-2 does not support traffic shaping. The NRP-2SV supports only the VBR-NRT QoS class.
To configure PVC traffic shaping and a QoS class for a PVC, use one of the following commands in VC
configuration mode or VC class mode:
Note If you do not specify a QoS class for a PVC, the PVC defaults to UBR, with a peak rate set to the
maximum physical line speed.
Command (VC or VC class) Purpose
ubr peak (NRP-1 only) Specifies the UBR QoS. Also sets the peak cell
rate in kbps.
vbr-nrt peak sustain burst Configures the nonreal-time VBR QoS. Also sets the peak cell
rate, sustained cell rate, and burst rate, in kbps.