Detection And Autoconfiguration For Dell Equallogic Arrays; Detection And Port Configuration For Dell Compellent Arrays - Dell PowerEdge M IO Aggregator Command Reference Manual

If no iSCSI traffic is detected for a session during a user-configurable aging period, the session data is
cleared.

Detection and Autoconfiguration for Dell EqualLogic Arrays

The iSCSI optimization feature includes auto-provisioning support with the ability to detect directly
connected Dell EqualLogic storage arrays and automatically reconfigure the switch to enhance storage
traffic flows.
The Aggregator uses the link layer discovery protocol (LLDP) to discover Dell EqualLogic devices on the
network. LLDP is enabled by default. For more information about LLDP, see
Protocol (LLDP).
The following message is displayed the first time a Dell EqualLogic array is detected and describes the
configuration changes that are automatically performed:
%STKUNIT0-M:CP %IFMGR-5-IFM_ISCSI_AUTO_CONFIG: This switch is being configured
for optimal conditions to support iSCSI traffic which will cause some automatic
configuration to occur including jumbo frames and flow-control on all ports; no
storm control to be enabled on the port of detection.
The following syslog message is generated the first time an EqualLogic array is detected:
%STKUNIT0-M:CP %LLDP-5-LLDP_EQL_DETECTED: EqualLogic Storage Array detected on
interface Te 1/43
• At the first detection of an EqualLogic array, an MTU of 12000 is enabled on all ports and
port-channels (if it is has not already been enabled).
• Spanning-tree portfast is enabled on the interface identified by LLDP if the port is in L2 mode.
• Unicast storm control is disabled on the interface identified by LLDP.

Detection and Port Configuration for Dell Compellent Arrays

An Aggregator auto-configures a port connected to a Dell Compellent storage array for the best iSCSI
traffic conditions.
The following message is displayed the first time a Dell Compellent array is detected and describes the
configuration changes that are automatically performed:
%STKUNIT0-M:CP %IFMGR-5-IFM_ISCSI_AUTO_CONFIG: This switch is being configured
for optimal conditions to support iSCSI traffic which will cause some automatic
configuration to occur including jumbo frames and flow-control on all ports; no
storm control to be enabled on the port of detection.
Link Layer Discovery
iSCSI Optimization | 151