15-28
Cisco 10000 Series Router Quality of Service Configuration Guide
OL-7433-09
Chapter 15 Oversubscribing Physical and Virtual Links
Configuring VC Weighting
Configuring VC Weighting
To configure VC weighting, perform the following configuration tasks:
•
Configuring ATM VC Weighting, page 15-28
•
Configuring VC Weighting Using a VC Class Map, page 15-29
•
Configuring VC Weighting on a Range of PVCs, page 15-30
•
Configuring VC Weighting On Subinterfaces Using a Bandwidth Remaining Ratio, page 15-31
•
Configuring VC Weighting on Class Queues Using Bandwidth Remaining Ratio, page 15-34
•
Configuring VC Queue Depth, page 15-38
Configuring ATM VC Weighting
To configure ATM VC weighting, enter the following commands beginning in global configuration
mode:
Configuration Example for Configuring ATM VC Weighting
Example 15-6
shows how to configure a weight of 10 for ATM PVC 1/32 on the ATM point-to-point
subinterface 1/0/0.1.
Example 15-6 Configuring ATM VC Weighting
Router(config)#
interface atm 1/0/0.1 point-to-point
Router(config-subif)#
pvc 1/32
Router(config-if-atm-vc)#
weight 10
Command
Purpose
Step 1
Router(config)#
interface atm
slot
/
subslot
/
port
.
subinterface
point-to-point
Selects an ATM interface or subinterface. Enters interface
or subinterface configuration mode.
Step 2
Router(config-subif)#
pvc
vpi
/
vci
Selects an ATM PVC.
vpi
/
is the virtual path identifier. If you do not specify a VPI
value and the slash character (/), the VPI value defaults to 0.
vci
is the virtual channel identifier.
Step 3
Router(config-if-atm-vc)#
weight
weight-value
Specifies the weight value.
weight-value
is the number of cells that a VC can send to
the VP tunnel before the SAR mechanism moves on to the
next VC. A high value has a higher VC priority in the VP
scheduler. Valid values are from 1 to 255 (PRE2) and 1 to
1000 (PRE3).
Note
We recommend that you do not configure the
weight_value
below 10 (PRE2).