22-15
ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter 22
Configuring Quality of Service
IP QoS—Functional Differences Between Modules (Catalyst 8540 MSR)
Example
The following example shows how to configure service class 2 and WRR weight 2:
Switch(config)#
interface atm 0/0/1
Switch(config-if)#
atm service-class 2 wrr-weight 2
To configure the output VC, use the following commands:
Example
The following example shows how to configure the WRR weight to the output VC of the output leg of
the PVC:
Switch(config)#
interface atm 0/0/1
Switch(config-if)#
atm pvc 2 1000 wrr-weight 2 interface atm 1/0/0 2 1000 wrr-weight 2
Displaying the IP QoS Configuration
To display the IP QoS configuration, use the following commands:
Example
The following example uses the
show epc ip-atm-qos interface
command to show the bandwidth and
weights of the scheduler classes:
Switch#
show epc ip-atm-qos interface atm 11/0/1
MMC Port: 119 MSC ID: 7 Port num in MSC:0
Service Application WRR Weight Bandwidth(Kbps)
Class External Internal Configured Actual
----------------------------------------------------------------------------
1 default * 51 200000 91234
6 b * 51 200000 91234
7 a * 25 100000 44722
2 CBR 15 240 198000 429338
3 VBR-RT/VBR-NRT 8 128 151499 228980
4 LSIPCs 15 255
5 UBR/UBR+ 4 64 0 114490
------------------------------------------------------------------------
* - External Weights for IPQoS is assigned through Bandwidth CLI
Command
Purpose
Step 1
Switch(config)#
interface atm
card
/
subcard
/
port
Switch(config-if)#
Specifies an ATM interface and enters interface
configuration mode.
Step 2
Switch(config-if)#
atm pvc
vpi-A
vci-A
wrr-weight
1-15
interface atm
card
/
subcard
/
port
vpi-B vci-B
wrr-weight
1-15
Configures the WRR weight to output VC of the
output leg of the PVC.
Command Purpose
Switch#
show epc ip-atm-qos interface atm
card
/
subcard
/
port
Displays bandwidth and weights of the scheduler
classes.
Switch#
show atm interface resource atm
card
/
subcard
/
port
Displays the amount of bandwidth allocated for IP
QoS.