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TABLE 7 QoS queues (continued)
QoS priority level
QoS queue
1
qosp1
2
qosp2
3
qosp3
4
qosp4
5
qosp5
6
qosp6
7
qosp7 (highest priority queue)
NOTE
On ICX 7450 devices, both Priority 6 and Priority 7 traffic maps to one multicast queue (MCQ:7).
The queue names listed in the table are the default names. If desired, you can rename the queues as shown in
Configuring the QoS queue
name and quaranteed bandwidth
on page 38.
Packets are classified and assigned to specific queues based on the criteria shown in the figures described in
Packet trust level
on page 12.
For ICX devices, ingress packets are classified into the eight priorities, which map to eight hardware queues or traffic classes (TCs) based
on the priority.
User-configurable scheduler profile
The user-configurable scheduler profile is a template that defines either the scheduling mechanism or scheduling profile (weights assigned
to the queues) or both for the egress queues.
A configured user-configurable scheduler profile for egress queues can be applied to any hardware device. The default QoS is applicable to
the entire system. If the scheduler profile is configured using the
qos mech strict
command, all devices in the system are configured with
the strict priority. The user-configurable scheduler profile is applicable only to the specific devices, leaving the remaining devices running
default QoS. On any device, user-configurable scheduler profile has high priority over the default QoS. The user-configurable scheduler
profile should be in line with default QoS commands in both stacking and standalone systems.
On Ruckus ICX 7750 devices, scheduler profiles are applied at the port, rather than at the device (port region), level. See the description of
the
scheduler-profile
command In the
Ruckus FastIron Command Reference
for more information.
User-configurable scheduler profile configuration
Configuring a user-configurable scheduler profile involves, selecting a proper mechanism and appropriate weights for the traffic classes
(TCs) corresponding to that mechanism.
It is highly recommended that you let the system use the default scheduling mechanism unless user knows what parameters you intend to
modify and for what reasons.
There are two ways of creating a user-configurable scheduler profile. The scheduler-profile can be created either by specifying a mechanism
(WRR, Strict, or Mixed) or by specifying weights.
The user-configurable scheduler profile can be created by specifying a mechanism. There are three available mechanisms:
•
Strict Priority (SP)
•
Weighted Round Robin (WRR)
•
Mixed (combination of SP and WRR)
Quality of Service
QoS queues
Ruckus FastIron QoS and Traffic Management Configuration Guide, 08.0.70
Part Number: 53-1005294-01
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