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6
(Optional) Set the QoS policy that is applied to the iSCSI flows.
CONFIGURATION mode
[no] iscsi cos {enable | disable | dot1p vlan-priority-value [remark] | dscp
dscp-value [remark]}
•
enable: enables the application of preferential QoS treatment to iSCSI traffic so that iSCSI packets
are scheduled in the switch with a dot1p priority 4 regardless of the VLAN priority tag in the packet.
The default is: iSCSI packets are handled with dotp1 priority 4 without remark.
•
disable: disables the application of preferential QoS treatment to iSCSI frames.
•
dot1p vlan-priority-value: specifies the virtual local area network (VLAN) priority tag
assigned to 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 the same priority is used in iSCSI TLV
advertisements if you do not enter the iscsi priority-bits command (Step 10).
•
dscp dscp-value: specifies the DSCP value assigned to incoming packets in an iSCSI session.
The range is from 0 to 63. The default is: the DSCP value in ingress packets is not changed.
•
remark: marks incoming iSCSI packets with the configured dot1p or DSCP value when they egress
the switch. The default is: the dot1 and DSCP values in egress packets are not changed.
7
(Optional) Set the aging time for iSCSI session monitoring.
CONFIGURATION mode
[no] iscsi aging time time.
The range is from 5 to 43,200 minutes.
The default is 10 minutes.
8
(Optional) Configures DCBX to send iSCSI TLV advertisements.
LLDP CONFIGURATION mode or INTERFACE LLDP CONFIGURATION mode
[no] advertise dcbx-app-tlv iscsi.
You can send iSCSI TLVs either globally or on a specified interface. The interface configuration takes
priority over global configuration.
The default is Enabled.
9
(Optional) Configures the advertised priority bitmap in iSCSI application TLVs.
LLDP CONFIGURATION mode
[no] iscsi priority-bits.
The default is 4 (0x10 in the bitmap).
10 (Optional) Configures the auto-detection of Compellent arrays on a port.
INTERFACE mode
[no] iscsi profile-compellent.
The default is: Compellent disk arrays are not detected.
NOTE:
The [no] iscsi profile-compellent. command is not supported on cascade interfaces
or extended ports
iSCSI Optimization
615
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Troubleshooting
