- All tests are offline tests that can be used to verify and replace FRUs. 
- All devices and paths must be quiesced prior to invocation of diagnostic tests.
- switchtest can run only on one port on a single switch instance at a time.
- linktestcannot be run with other tests, and can only be run using Test from Topology. You cannot run- linktestusing Test from List.
- The Link Test enables FRU isolation for Fibre Channel devices. You can invoke the Link Test from the Topology view by selecting the link. 
- In-band tests can be run from the Test from Topology view with no restrictions. 
- An out-of-band test (for example, 6120ofdg or switch2test) can be run from the Test from Topology view under the following conditions:
 - It is run from the monitoring host view, or
- It is run from the merged topology view.
 
Note - 
 
Any attempts to ignore or circumvent diagnostic test rules will cause pop-up warnings to display.