HP StorageWorks 2/64 - Core Switch Installation Manual page 49

Leave at least one meter of slack for each fiber optic cable. This provides room to remove and
replace the port card, allows for inadvertent movement of the rack, and helps prevent the
cables from being bent to less than the minimum bend radius.
Use the cable guides provided with the switch to group the cables. These guides help to keep
individual ports accessible by keeping the cables evenly spaced. If ISL Trunking is in use,
grouping the cables by trunking group is recommended. The ports are color-coded to indicate
which ports can be used in the same ISL Trunking group. Four ports marked with solid black
ovals alternate with four ports marked with oval outlines.
NOTE: ISL Trunking is a Fabric OS feature that enables distribution of traffic over the
combined bandwidth of up to four ISLs between two directly adjacent switches, while
preserving in-order delivery. For more information, refer to the HP StorageWorks features
overview for the Fabric OS version running on your switch.
Due to the wavelengths used in transmitting data, a minimum length is required for cables that
connect the Core Switch 2/64 or the SAN Director 2/128 ports to device ports, as follows:
9 microns, single-mode (SM)—2 meters
•
• 50 microns, multimode (M5)—2 meters
• 62.5 microns, multimode (M6)—2 meters
Core Switch 2/64 and SAN Director 2/128 installation guide 49