User manual
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McDATA Sphereon™ 4500 Fabric Switch Product Manager User Manual
Using Logs
Loss-of-signal occurs when a cable is unplugged from an
attached node. Loss-of-synchronization condition has
persisted for longer than the resource allocation time out value
(R_A_TOV).
— Not-operational (NOS) primitive sequence received.
A NOS was recognized.
— Primitive sequence timeout.
• Link reset protocol timeout occurred.
• Timeout occurred for an appropriate response while in
NOS receive state and after NOS is no longer recognized.
— Invalid primitive sequence received for the current link state.
Either a link reset or a link reset response primitive sequence
was recognized while waiting for the offline sequence.










