Detection and Auto-Configuration forDell EqualLogic ArraysThe iSCSI optimization feature includes auto-provisioning support with the ability to detect directlyconnected Dell EqualLogic storage arrays and automatically reconfigure the switch to enhance storage trafficflows.The switch 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, refer to Link Layer Discovery Protocol (LLDP).The following message displays the first time a Dell EqualLogic array is detected and describes theconfiguration changes that are automatically performed:%SYSTEM:CP %IFMGR-5-IFM_ISCSI_AUTO_CONFIG: This switch is being configured foroptimal conditions to support iSCSI traffic which will cause some automaticconfiguration to occur including jumbo frames and flow-control on all ports; nostorm 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:%SYSTEM:CP %LLDP-5-LLDP_EQL_DETECTED: EqualLogic Storage Array detected oninterface 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 has not already been enabled).• Spanning-tree portfast is enabled on the interface LLDP identifies.• Unicast storm control is disabled on the interface LLDP identifies.Configuring Detection and Ports forDell Compellent ArraysTo configure a port connected to a Dell Compellent storage array, use the following command.• Configure a port connected to a Dell Compellent storage array.INTERFACE Configuration modeiscsi profile-compellentThe command configures a port for the best iSCSI traffic conditions.The following message displays the first time you use the iscsi profile-compellent command toconfigure a port connected to a Dell Compellent storage array and describes the configuration changes thatare automatically performed:%SYSTEM:CP %IFMGR-5-IFM_ISCSI_AUTO_CONFIG: This switch is being configured foroptimal conditions to support iSCSI traffic which will cause some automaticconfiguration to occur including jumbo frames and flow-control on all ports; nostorm 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:iSCSI Optimization 620
