Reference Guide

iSCSI Optimization | 387
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 and spanning-tree port
fast 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 for the S4810 and 9252 for S60 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.
• Unicast storm control is disabled on the interface identified by LLDP.
Detection and Port Configuration for Dell Compellent Arrays
This feature is available on platforms
Switches support the
iscsi profile-compellent command to configure a port connected to a Dell Compellent
storage array. The command configures a port for the best iSCSI traffic conditions and must be entered in
INTERFACE Configuration mode.
The following message is displayed the first time you use the
iscsi profile-compellent command to
configure a port connected to a Dell Compellent storage array 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 and spanning-tree port
fast to be enabled on the port of detection.
After you execute the iscsi profile-compellent command, the following actions occur:
• Jumbo frame size is set to 12000 for the S4810 and 9252 for S55 and S60 on all ports and
port-channels, if it is not already enabled.
• Spanning-tree portfast is enabled on the interface.
• Unicast storm control is disabled on the interface.
You must enter the
iscsi profile-compellent command in INTERFACE configuration mode. For example:
FTOS(conf-if-te-o/50# iscsi profile-compellent)