Iscsi Optimization: Operation; Default Iscsi Optimization Values - Dell PowerEdge M IO Aggregator Command Reference Manual

The Aggregator auto-configures as follows:
• Jumbo frame size is set to 12000 for all interfaces on all ports and port-channels, if it is not already
enabled.
• Unicast storm control is disabled on the interface identified by LLDP.

iSCSI Optimization: Operation

When the Aggregator auto-configures with iSCSI enabled, the following actions occur:
• Link-level flow control is globally enabled and PFC is disabled.
• 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 is displayed 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 11-1
Table 11-1. iSCSI Optimization: Default Parameters
Parameter
iSCSI Optimization global setting
iSCSI CoS mode (802.1p priority queue
mapping)
iSCSI CoS Packet classification
VLAN priority tag
DSCP
Remark
iSCSI session aging time
iSCSI optimization target ports
152 | iSCSI Optimization
shows the default values for the iSCSI optimization feature.
Enabled
Enabled: dot1p priority 4 without remark setting
iSCSI packets are classified by VLAN instead of by DSCP values.
iSCSI flows are assigned by default to dot1p priority 4 without remark
setting.
None: user-configurable.
Not configured.
10 minutes
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.
Default Value