User`s guide

194 XgOS User’s Guide • September 2014
Each vNIC has eight traffic queues. Network traffic can enter on any of the queues,
but the QoS Profiles are applied to vNIC traffic on all queues. If QoS parameters
have been assigned to the vNIC, the associated vNIC Profile is applied to the traffic.
As a result, the information rate and burst size parameters are applied to the traffic.
Because network QoS Policer profiles are configured, any traffic that is out of the
range created by the CIR, PIR, CBS, and PBS parameters is dropped.
Also, notice in this example that the QoS set is applied to the actual I/O card, and
the vNIC QoS profiles are assigned to individual vNICs. Each I/O card can be set
with only one main policy, but that policy can contain many subset policies (for
example, /1, /2, /3 and so on for the main policy foo). The vNIC QoS profiles (not
the card QoS sets) are what actually police the traffic.