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ATM Switch Router Software Configuration Guide
OL-7396-01
Chapter22 Configuring Quality of Service
IP QoS—Functional Differences Between Modules (Catalyst8540 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
Step1 Switch(config)# interface atm card/subcard/port
Switch(config-if)#
Specifies an ATM interface and enters interface
configuration mode.
Step2 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.