Reference Guide
2 Enter the output service-policy in SYSTEM-QOS mode or INTERFACE mode.
service-policy {output} type {queuing} policy-map-name
Enable strict priority on class-map
OS10(config)# class-map type queuing magnum
OS10(conf-cmap-queuing)# match queue 7
OS10(conf-cmap-queuing)# exit
OS10(config)# policy-map type queuing solar
OS10(conf-pmap-queuing)# class magnum
OS10(conf-pmap-c-que)# priority
OS10(conf-pmap-c-que)# exit
OS10(conf-pmap-queuing)# exit
OS10(config)# system qos
OS10(conf-sys-qos)# service-policy output solar
View QoS system
OS10(conf-sys-qos)# do show qos system
Service-policy (output)(queuing): solar
Enable strict priority on interface
OS10(config)# interface ethernet 1/1/5
OS10(conf-if-eth1/1/5)# service-policy output type queuing solar
View policy-map
OS10(conf-if-eth1/1/5)# do show policy-map
Service-policy(queuing) output: solar
Class-map (queuing): magnum
priority
Buer management
OS10 devices distribute the total available buer resources into two buer pools at ingress direction and three buer pools at egress
direction of all the physical ports.
All ports in a system are allocated a certain amount of buers from corresponding pools, based on the conguration state of each priority-
group or queue. The remaining buers in the pool are shared across all similarly congured ports.
The following buer pools are available:
• Ingress buer pools:
– Lossy pool (default)
– Lossless pool (PFC)
• Egress buer pools:
– Lossy pool (default)
– Lossless pool (PFC)
– CPU pool (CPU control trac)
For example, when all ports are allocated reserved buers from the lossy (default) pool, the remaining buers in the lossy pool are shared
across all ports, except the CPU port.
When you enable priority ow control (PFC) on the ports, all the PFC enabled queues and priority-groups use the buers from the lossless
pool.
OS10 dedicates a separate buer pool for CPU trac. All default reserved buers for CPU port queues are from the CPU pool, and the
remaining buers are shared across all CPU queues. You can modify the buer settings of CPU queues.
OS10 allows conguration of buers per priority-group and queue for each port.
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Quality of service