Sun Oracle Storage Tek T10000, Справочное руководство

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E20425-01 • Chapter 2 Physical Interface 11
Considerations
Limitations
There is no limit to cascading the number of hubs within a network as long as
the following guidelines are followed:
Note: Refer to the hub manufacturer’s requirements for cascading, the
following are just general guidelines.
• The length of the cable affects the number of allowable ports.
• The hub adds length to the cabling in the network.
• Use ports 1 and 4 to cascade to other hubs. This increases the potential of
dual port devices and redundant paths.
• Do not exceed the maximum number of hubs per cascade link.
The maximum number of hubs before retiming is six (6) with short cables,
two (2) with maximum length cascade cables.
• Configure the loop so the devices are properly positioned in relation to the
hub.
Figure 4 is an example of cascading hubs.
Figure 4. Loop Containing a Switch and a Hub
N_Port
F_Port