Brocade Multi-Service IronWare QoS and Traffic Management Configuration Guide (Supporting R05.6.00) - Manual (Page 226)

212 Multi-Service IronWare QoS and Traffic Management Configuration Guide
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Hierarchical QoS (HQoS) for 8x10G modules
5
HQoS egress port scheduler
Figure 28 depicts the Egress Port Scheduler for a port for which HQoS is enabled.
FIGURE 28 HQoS egress port scheduler
The Egress Port Scheduler has 9 SP inputs. The scheduler and queue setup for the first 8 inputs is
exactly the same as the current egress port scheduler without HQoS. The queues attached to the
first 8 inputs are used for scheduling packets from the CPU, which are sent which includes protocol
packets and CPU forwarded packets. The 9th (last) input is used for attaching the HQoS scheduler.
The scheduling mechanism between the packets sent from CPU and the level 0 HQoS scheduler is
strict priority.