Dell Force10 MXL Blade MXL 10/40GbE Switch IO Module Configuration Guide - Page 282
Detection and Autoconfiguration for Dell EqualLogic Arrays, Link Layer, Discovery Protocol LLDP
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www.dell.com | support.dell.com 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 MXL 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 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 1200 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 MXL 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. 280 | iSCSI Optimization
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