
CanogaOS Configuration Guide
32-3
In this example, we show how to configure hierarchical QoS. As shown in the following
figure, two customers, EVC-A and EVC-B, paid for both uplink and downlink bandwidth
of 5 Mbps and 8 Mbps, respectively. EVC-A requires assurance of 1 Mbps for its voice
traffic and 2 Mbps for its privacy data traffic. EVC-B also requires assurance of 1.5 Mbps
for its voice traffic and 2.5 Mbps for its privacy data traffic. Next, we will illustrate how to
reach the purpose of bandwidth profiling for EVC-A and EVC-B.
Figure 32-1: Hierarchical QoS
Hierarchical QoS details
Command Description
DUT#configure terminal Enter the Configure mode.
DUT(config)#qos enable Enable QoS globally.
DUT(config)#qos ethernet reserved start-vlan 3800 number
200
Reserve VLAN range for creating EVC.
DUT(config)#vlan database Enter VLAN database.
DUT(config-vlan)#vlan 101-300,1101-1300 Create VLAN.
DUT(config-vlan)#exit Quit from the VLAN database.
DUT(config)#qos sap-egress sap-policy-EVC-A Create a QoS SAP egress policy for EVC-A.
DUT(config-sap-egress)#queue-rate 2000 1000 1000 Configure downlink queue bandwidth profile for
EVC-A.
DUT(config-sap-egress)#total-rate 5000 Configure aggregate downlink bandwidth for
EVC-A.
DUT(config-sap-egress)#exit Quit from the QoS SAP egress policy.
DUT(config)#qos net-egress net-policy-EVC-A Create a QoS network egress policy for EVC-A.
DUT(config-net-egress)#queue-rate 2000 1000 1000 Configure uplink queue bandwidth for EVC-A.
DUT(config-net-egress)#total-rate 5000 Configure aggregate uplink bandwidth for EVC-A.
DUT(config-net-egress)#exit Quit from the QoS network egress policy.
DUT(config)#qos sap-egress sap-policy-EVC-B Create a QoS SAP egress policy for EVC-B.
DUT(config-sap-egress)#queue-rate 2500 1500 1000 Configure downlink queue bandwidth for EVC-B.
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