Administrator Guide
iscsi cos
Set the QoS policy that is 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 no iscsi cos command.
Parameters
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. The default is: the 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. The range is from 0 to 7. The default is the dot1p value in ingress iSCSI
frames is not changed and is the same priority 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 from 0 to 63. The default is: 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. The default is: the dot1and DSCP values in egress packets are not
changed.
Defaults Disabled.
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.0) Introduced on the S6100–ON.
9.10(0.0) Introduced on the S3148.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
8.3.19.0 Introduced on the S4820T.
8.3.12.0 Introduced on the S4810.
8.3.16.0 Introduced on MXL 10/40GbE Switch IO Module.
Usage Information By default, iSCSI flows are assigned to dot1p priority 4.
iscsi enable
Globally enable iSCSI optimization.
Syntax
iscsi enable
To disable iSCSI optimization, use the no iscsi enable command.
Parameters
enable
Enter the keyword enable to enable the iSCSI optimization feature.
Defaults Disabled.
Command Modes CONFIGURATION
iSCSI Optimization 781