FW V06.XX/HAFM SW V08.02.00 HP StorageWorks SAN High Availability Planning Guide (AA-RS2DD-TE, July 2004)

Planning Considerations for Fibre Channel Topologies
68 SAN High Availability Planning Guide
other, and public devices attached to the loop can communicate with
fabric-attached devices. FL_Port operation is not affected by the switch
operating mode (shared or switched). Public loop connectivity is illustrated in
Figure 25.
Figure 25: Public loop connectivity
■ Private loop — A private loop is not connected to a switched fabric, and the
switch’s embedded E_Port and FL_Port are inactive. All devices attached to
the loop can communicate only with each other. Private loop connectivity is
illustrated in Figure 26.
Figure 26: Private loop connectivity
D1
S1
Embedded FL_Port
H_Ports
B_Port
Loop Switch