Service manual

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McDATA Sphereon 4400 Fabric Switch Installation and Service Manual
Repair Information
Inform the customer a disruptive internal loopback test is to be
performed. Ensure the system administrator quiesces Fibre Channel
frame traffic through the por and sets the attached device offline.
NOTE: A small form factor pluggable (SFP) optical transceiver must be
installed in the port during the test. A device can remain connected
during the test.
To perform the test use the following steps:
1. Select Diagnostics from the Maintenance menu
(Maintenance>Ports>Diagnostics). The Diagnostics View appears
(Figure 4-4).
Figure 4-4 Diagnostics View
2. Type the port number to be tested in the Targeted Port Number
field.
3. Select the Internal Loopback option, at the Diagnostic Test list box.
4. Click Start. The test begins and:
a. The Diagnostics View changes to a Diagnostics - Executing View.
b. The message Diagnostics Time Remaining: xx appears,
where xx are the seconds remaining in the test. The test takes
approximately 30 seconds.
NOTE: Click Stop at any time to abort the loopback test.