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### Instruction:
ISIS-4-INTF_NSF_MEDIA_MISMATCH
### Response:
(Severity: 4), (Category: ROUTING), (Description: IS-IS has detected a mismatch between the media class (i.e. Point to Point vs. LAN) of an interface as determined by IS-IS's checkpoint state and IM. As a result the interface will not participate in the NSF restart. This is an internal programming error.), (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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