CLI Guide

Layer 2 Switching Commands 599
iSCSI Optimization borrows ACL lists from the global system pool. ACL lists
allocated by iSCSI Optimization reduce the total number of ACLs available
for use by the network operator. Enabling iSCSI Optimization uses one ACL
list to monitor for iSCSI sessions for the application of any CoS treatment.
Commands in this Section
This section explains the following commands:
iscsi cos
Use the iscsi cos command in Global Configuration mode to set the quality
of service profile that will be applied to iSCSI flows. To return the VPT/DSCP
setting to the default value, use the no form of this command. VPT/DSCP
values can be configured independently from the application of QoS
treatment.
Syntax
iscsi cos {enable | disable | vpt vpt | dscp dscp} [remark]
no iscsi cos
• enable—Enables application of preferential QoS treatment to iSCSI
frames.
• disable—Disables application of preferential QoS treatment to iSCSI
frames.
• vpt/dscp—The VLAN Priority Tag or DSCP value to assign received iSCSI
session packets.
• remark—Mark the iSCSI frames with the configured DSCP when
egressing the switch.
Default Configuration
By default, frames are not remarked. The default vpt setting for iSCSI is 4,
which the default class of service 802.1p mapping assigns to queue 2.
iscsi cos show iscsi
iscsi enable
–