Reference Guide

Parameter Default Value
VLAN priority tag iSCSI flows are assigned by default to dot1p priority
4 without the remark setting.
DSCP None: user-configurable.
Remark Not configured.
iSCSI session aging time 10 minutes
iSCSI optimization target ports iSCSI well-known ports 3260 and 860 are
configured as default (with no IP address or name)
but can be removed as any other configured
target.
iSCSI Optimization Prerequisites
The following are iSCSI optimization prerequisites.
• iSCSI optimization requires LLDP on the switch. LLDP is enabled by default (refer to Link Aggregation
Control Protocol (LACP)).
• iSCSI optimization requires you allocate two ingress ACL groups in CAM, refer to CAM Allocation
NOTE: Before you configure iSCSI optimization, you can ensure that these prerequisites are met by
copying the iSCSI configuration file to the running configuration. The iSCSI configuration file is
stored at: flash:/CONFIG_TEMPLATE/ISCSI_DCB_CONFIG.
Configuring iSCSI Optimization
To configure iSCSI optimization, use the following commands.
1. Globally enable iSCSI optimization on the switch.
CONFIGURATION mode
[no] iscsi enable
NOTE: You cannot enable iSCSI optimization when the VLT domain is active. To deactivate the
VLT domain, use the no vlt domain command.
The default is disabled.
2. Configure the iSCSI target ports and optionally the IP addresses on which iSCSI communication is
monitored.
CONFIGURATION mode
[no] iscsi target port tcp-port-1 [tcp-port-2...tcp-port-16] [address ip-
address]
• tcp-port-n is the TCP port number or a list of TCP port numbers on which the iSCSI target
listens to requests. You can configure up to 16 target TCP ports on the switch in one command
or multiple commands. The default is 860, 3260. Separate port numbers with a comma.
iSCSI Optimization
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