Command Line Interface Guide

iSCSI Optimization Commands 553
(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.
If an EqualLogic array is detected when QoS is enabled, two additional TCP
ports receive preferential QoS treatment (TCP ports 25555 and 9876). This
QoS policy is applied globally.
Example
The following example configures iSCSI packets to receive CoS treatment
using DiffServ Code Point AF 41 and configures remarking of transmitted
iSCSI packets.
console(config)#iscsi cos dscp 10 remark
iscsi enable
The iscsi enable command globally enables iSCSI optimization. To disable
iSCSI optimization, use the no form of this command.
Syntax
iscsi enable
no iscsi enable
Default Configuration
iSCSI is enabled by default.
Command Mode
Global Configuration mode
User Guidelines
This command modifies the running config to enable flow control on all
interfaces.
Monitoring for EqualLogic Storage arrays via LLDP is also enabled by this
command. Upon detection of an EQL array, the specific interface involved
will have spanning-tree portfast enabled and unicast storm control disabled.
2CSPC4.XModular-SWUM201.book Page 553 Monday, October 3, 2011 2:21 PM