Dell Force10 S55T FTOS Command Line Reference Guide for the S55 System FTOS 8. - Page 604

www.dell.com | support.dell.com 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 enable disable dot1p vlan-priority-value dscp dscp-value remark 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. Enter the keyword disable to disable the application of preferential QoS treatment to iSCSI frames. 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. 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. 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. Defaults See above. Command Modes CONFIGURATION Command History Version 8.3.12.0 Version 8.3.16.0 Introduced on the S4810. Introduced on MXL 10/40GbE Switch IO Module Usage By default, iSCSI flows are assigned to dot1p priority 4. Dell Force10 recommends changing Information 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 enable Enter the keyword enable to enable the iSCSI optimization feature. Defaults Disabled. Command Modes CONFIGURATION 600 | iSCSI Optimization