Reference Guide

162 | iSCSI Optimization
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• Link-level flow control is enabled on PFC disabled interfaces.
• iSCSI session snooping is enabled.
• iSCSI LLDP monitoring starts to automatically detect EqualLogic arrays.
iSCSI optimization requires LLDP to be enabled. LLDP is enabled by default when an Aggregator
auto-configures.
The following message displays when you enable iSCSI on a switch and describes the configuration
changes that are automatically performed:
%STKUNIT0-M:CP %IFMGR-5-IFM_ISCSI_ENABLE: iSCSI has been enabled causing flow
control to be enabled on all interfaces. EQL detection and enabling iscsi
profile-compellent on an interface may cause some automatic configurations to
occur like jumbo frames on all ports and no storm control and spanning tree
port-fast on the port of detection.
Default iSCSI Optimization Values
Table 10-1 Lists the default values for the iSCSI optimization feature.
Displaying iSCSI Optimization Information
Table 10-1. iSCSI Optimization: Default Parameters
Parameter Default Value
iSCSI Optimization global setting Enabled
iSCSI CoS mode (802.1p priority queue
mapping)
Enabled: dot1p priority 4 without the remark setting
iSCSI CoS Treatment iSCSI packets are queued based on dot1p instead of DSCP values.
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 session monitoring Enabled. The CAM allocation for iSCSI by default is set to two.