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Procedure 5: Plan the FC-AL Connections 33
Installation
In a cascaded configuration of model S10 short-wave hubs, connect any port on the first
hub to any port on the second hub. Figure13 includes all 18 nodes in the loop formed by
FC-AL Device 1, Hub A, Hub B, and FC-AL Device 2:
– Port 1 on Hub A connects to FC-AL Device 1.
– Port 10 of Hub A connects to Port 1 of Hub B.
– Port 10 on Hub B connects to FC-AL Device 2.
In this configuration, any unused port on Hub A or Hub B can connect to any compatible
FC-AL device. This is just one example of cascaded short-wave hubs. The connection
between short-wave hubs can occupy any combination of ports.
Figure 13 Cascaded Short-Wave Hub Configuration
Note If you plan to use Fibre Channel Manager to manage cascaded hubs, you must
configure the hub that has the LAN (ethernet) connection as a parent hub and
the remaining hub as a child hub (see Configuring Cascaded Hubs on page60).
Correct Cabling Example for a Long-Wave Hub
Hewlett-Packard recommends 9-micron, single-mode fiber cable for the long-wave port.
For ports 1 through 9, the short-wave ports, Hewlett-Packard recommends 50-micron
multimode fiber cable for new installations but also supports 62.5-micron multimode fiber
cable with SC-style connectors in existing installations.
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FC-AL Device 2
Short-Wave Hub A Short-Wave Hub B
FC-AL Device 1