Dell PowerConnect 5524P User Manual page 587

• Each session supports at most four TCP connections. If a new TCP
connection of an already opened iSCSI session arrives, and there are
already four TCP connections, the new connection replaces the oldest one,
within this specific iSCSI session.
• A short flow interruption, caused by STP topology change or
administrative port-down action, might cause the TCP connection to
reinitiate without closing the iSCSI session. If the actual iSCSI session
used only one TCP connection, the reinitiated one will be added to the
monitoring table, for an aging-time period. After that, it is removed from
the list.
Dell PowerConnect 55xx Systems User Guide
587