Quality of Service (QoS) Commands
515
ProSafe Managed Switch
setting for egress queues scheduling is Weighted Round Robin
(WRR).
The user may complete the QoS setting by configuring the relevant
ports to work in other scheduling and queue management modes via
the Class of Service settings. Depending on the platform, these
choices may include strict priority for the queue used for iSCSI
traffic. The downside of strict priority is that, in certain circumstances
(under heavy high priority traffic), other lower priority traffic may get
starved. In WRR the queue to which the flow is assigned to can be
set to get the required percentage.
Format iscsi cos traffic-class {vpt <vpt> | dscp <dscp>} [remark]
Mode
traffic-class
vpt/dscp
remark
no iscsi cos
This command is to set the quality of service profile of SCSI flows to default.
Format no iscsi cos
Mode
iscsi aging time
The iscsi aging time Global Configuration mode command sets aging time for iSCSI
sessions.
Behavior when changing aging time:
•When aging time is increased - Current sessions will be timed out according to the new
value.
•When aging time is decreased - Any sessions that have been dormant for a time
exceeding the new setting will be immediately deleted from the table. All other sessions
will continue to be monitored against the new time out value.
Format iscsi aging time <time>
Mode
Default
Global Config
Term Definition
The traffic class used for assigning iSCSI traffic to a queue.
The VLAN Priority Tag or DSCP to assign iSCSI session packets.
Mark the iSCSI frames with the configured VPT/DSCP when egressing the switch.
Global Config
Global Config
5 minutes