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### Instruction:
BFD-3-PROT_BFD_SESSION_DOWN_MESSAGE_LOST
### Response:
(Severity: 3), (Category: L2), (Description: One or more PROT_BFD_SESSION_DOWN PFI fast protect event has been lost. If a link which BFD session failed happened to be fast-reroute protected, fast-reroute may not have been triggered.), (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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