QoS Scheduler Policies
Quality of Service Guide 515
Figure 24: Port Bandwidth Distribution for Service and Port Scheduler Hierarchies
Figure 25: Port Bandwidth Distribution for Direct Queue to Port Scheduler Hierarchy
Queue Parental Association Scope
A port-parent command in the sap-egress and network-queue QoS policy queue context
defines the direct child/parent association between an egress queue and a port scheduler
priority level. The port-parent command is mutually exclusive to the already-existing
parent command, which associates a queue with a scheduler at the SAP, multi-service site or
subscriber or multi-service site profile level. It is possible to mix local parented (parent to
service or subscriber or multi-service site level scheduler) and port parented queues with
schedulers on the same egress port.
OSSG134
SAP/Sub
Queue
(Packet Provisioned)
MSS/SAP/Sub
Scheduler Hierarchy
(Packet Provisioned)
Rate Limiting
Port Priority
Level
(Frame Provisioned)
Rate Limiting
Port Scheduler
(Frame Provisioned)
Highest
Lowest
Queue
Strict/
Weighted
Rate Limiting
Scheduler
Strict/
Weighted
Rate Limiting
Scheduler
Highest
Lowest
Weighted
Rate Limiting
Scheduler
Highest
Egress
Port
Lowest
Strict
Priority
Rate Limiting
Scheduler
Strict/
Weighted
Rate Limiting
Scheduler
OSSG135
SAP/Sub
Queue
(Packet Provisioned)
MSS/SAP/Sub
Scheduler Hierarchy
(Packet Provisioned)
Rate Limiting
Port Priority
Level
(Frame Provisioned)
Rate Limiting
Port Scheduler
(Frame Provisioned)
Queue
Queue
Queue
Agg
Rate
Limit
Highest
Lowest
Weighted
Rate Limiting
Scheduler
Highest
Egress
Port
Lowest
Strict
Priority
Rate Limiting
Scheduler
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