Users Guide

3. Apply the queuing policy globally in the system-qos mode.
OS10(config)# system qos
OS10(config-sys-qos)# show configuration
OS10(config-sys-qos)# service-policy output type queuing PM_QUEUING
OS10(config-sys-qos)# exit
4. Apply QoS configuration on the leaf node-facing ports.
OS10(config)# interface ethernet 1/1/21
OS10(conf-if-eth1/1/21)# service-policy input type qos PM_QOS_LEAF_PORT
OS10(config)# interface ethernet 1/1/22
OS10(conf-if-eth1/1/22)# service-policy input type qos PM_QOS_LEAF_PORT
OS10(config)# interface ethernet 1/1/23
OS10(conf-if-eth1/1/23)# service-policy input type qos PM_QOS_LEAF_PORT
OS10(config)# interface ethernet 1/1/24
OS10(conf-if-eth1/1/24)# service-policy input type qos PM_QOS_LEAF_PORT
Verify the configuration
● Verify the bandwidth settings.
OS10# show queuing weights interface ethernet 1/1/99:3
Interface ethernet1/1/99:3
Queue Weight(In percentage)
--------------------------------
0 5
1 5
2 5
3 65
4 5
5 5
6 5
7 5
● Verify if the packets are assigned to the respective queues. Packets with a dot1p priority of 3 or DSCP value of 24
is assigned queue 3 and packets with other dot1p priority or DSCP value is assigned to queue 0. Given that we have
allocated a bandwidth of 65% to queue 3, queue 3 traffic gets more bandwidth and other traffic gets less bandwidth. During
congestion, the drop counter indicates packet drops for queue 0 and no drops for queue 3. Notice that in the following show
outputs, traffic from queue 0 is dropped when there is congestion; however, queue 3 still gets a guaranteed bandwidth of
65%.
Network port of L1 switch (ingress VTEP):
OS10# show queuing statistics interface ethernet 1/1/21
Interface ethernet1/1/21
Queue Packets Bytes Dropped-Packets Dropped-Bytes
0 6278443 1896079620 8363856 2559327800
1 0 0 0 0
2 0 0 0 0
3 14648249 4423771198 0 0
4 0 0 0 0
5 0 0 0 0
6 0 0 0 0
7 0 0 0 0
Access ports of L3 switch (destination VTEP):
OS10# show queuing statistics interface ethernet 1/1/1
Interface ethernet1/1/1
Queue Packets Bytes Dropped-Packets Dropped-Bytes
0 18415845 4788112915 0 0
1 0 0 0 0
2 0 0 0 0
3 0 0 0 0
4 0 0 0 0
5 0 0 0 0
Quality of service
1547