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### Instruction:
FSDB-1-PLANE_UPDOWN
### Response:
(Severity: 1), (Category: FABRIC), (Description: If the plane is reported down other than when administratively brought down, it means that the sprayer cannot reach *any* destination on the plane. This is a symptom of too many other fabric errors (DESTINATION_UPDOWN) than an error itself. The plane can no longer be used to send any traffic. If the plane is reported mcast_down, it means that certain fabric destinations are not reachable on this plane.It is still good for unicast traffic, but for destinations which are reachable on this plane.), (Recommended Action: Copy the error message exactly as it appears on the console or in the system log, call your Cisco technical support representative and provide the representative with the gathered information.)
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