Service manual

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McDATA Sphereon 4400 Fabric Switch Installation and Service Manual
Maintenence Analysis Procedures
9
Does the configuration use multiple daisy-chained Ethernet hubs?
YES NO
↓ Go to step 11.
10
Verify hubs are correctly daisy-chained.
a. Top hub - As shown in Figure 3-1 (1), ensure an RJ-45 Ethernet
cable connects to port 24 and the medium-dependent interface
(MDI) switch is set to MDI (in).
b. Middle hub - As shown in Figure 3-1 (2), ensure the cable from
the top hub connects to port 12, the cable from the bottom hub
connects to port 24, and the MDI switch is set to MDI (in).
c. Bottom hub - As shown in Figure 3-1 (3), ensure the cable from
the middle hub connects to port 12 and the MDI switch is set to
MDIX (out).
Figure 3-1 Daisy-Chained Ethernet Hubs
Was the maintenance action successful?
NO YES
↓ The management server connection is restored. Exit MAP.