Command Line Reference Guide

600 | iSCSI Optimization
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iscsi cos
Set the QoS policy that will be applied to the iSCSI flows.
Syntax
iscsi cos {enable | disable | dot1p vlan-priority-value [remark] | dscp dscp-value [remark]}
To disable the QoS policy, use the iscsi cos disable command.
Parameters
Defaults
See above.
Command Modes
CONFIGURATION
Command
History
Usage
Information
By default, iSCSI flows are assigned to dot1p priority 4. Dell Force10 recommends changing
the dot1p priority-queue setting to 0 (zero).
iscsi enable
Globally enable iSCSI optimization.
Syntax
iscsi enable
To disable iSCSI optimization, use the no iscsi enable command.
Parameters
Defaults
Disabled.
Command Modes
CONFIGURATION
enable Enter the keyword enable to allow the application of preferential QoS treatment to
iSCSI traffic so that the iSCSI packets are scheduled in the switch with a dot1p
priority 4 regardless of the VLAN priority tag in the packet.
Default: iSCSI packets are handled with dotp1 priority 4 without remark.
disable Enter the keyword disable to disable the application of preferential QoS treatment
to iSCSI frames.
dot1p
vlan-priority-value
Enter the dot1p value of the VLAN priority tag assigned to the incoming packets in
an iSCSI session.
Range: 0 to 7.
Default: The dot1p value in ingress iSCSI frames is not changed and is used in
iSCSI TLV advertisements if you did not enter the
iscsi priority-bits command.
dscp dscp-value
Enter the DSCP value assigned to the incoming packets in an iSCSI session.
The valid range is 0 to 63.
Default: The DSCP value in ingress packets is not changed.
remark
Marks the incoming iSCSI packets with the configured dot1p or DSCP value when
they egress to the switch.
Default: The dot1and DSCP values in egress packets are not changed.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.16.0 Introduced on MXL 10/40GbE Switch IO Module
enable Enter the keyword enable to enable the iSCSI optimization feature.