434 Configuring iSCSI Optimization
If the iSCSI CoS policy feature is enabled on the switch and an EqualLogic
array is detected, the switch applies additional iSCSI CoS policies to the
EqualLogic inter-array traffic on TCP ports 9876 and 25555.
What Occurs When iSCSI is Enabled or Disabled?
When iSCSI is enabled on the switch, the following actions occur:
• The MTU on all ports and port-channels is set to 9216 (jumbo frames are
enabled).
• Flow control is globally enabled, if it is not already enabled.
• iSCSI LLDP monitoring starts to automatically detect Dell EqualLogic
arrays.
If the iSCSI feature is disabled on the switch, iSCSI resources are released
and the detection of Dell EqualLogic arrays by using LLDP is disabled.
Disabling iSCSI does not remove the MTU, flow control, portfast or storm
control configuration applied as a result of enabling iSCSI.
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