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Dell EMC Configuration Guide for the S4048T–ON System 9.14.2.4

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Detection and Auto-Configuration 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 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 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/
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  • At the first detection of an EqualLogic array, the maximum supported MTU 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.

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