You can view the syslog stored locally on the gateway using the show logging file content CLI command.

If the S8300 heartbeat stops, the gateway will reset the S8300 and log a message indicating that a HARD RESET and then a SOFT RESET was performed. There could also be Unsupported Media Module messages when the gateway has not identified the type of board in the slot.

<187>Dec 29 15:25:04 g450graf -NoTag: -NoUTC(0 0 0:14:20) 2021 350 1 
mediagateway.g450 | 0 ICC-TRPMAJNA[VOICE-Error: S8300 carries out HARD RESET, 
ID=e2a214cc8919d0e4ebf0620beb381a53

<187>Dec 29 15:24:11 g450graf -NoTag: -NoUTC(0 0 0:13:27) 2021 690 1 
mediagateway.g450 | 0 MSY-TRPMAJNO[VOICE-Error: Unsupported Media Module 
insertion 019V1, ID=e2a214cc8919d0e4ebf0620beb381a53

<187>Dec 29 15:24:11 g450graf -NoTag: -NoUTC(0 0 0:13:27) 2021 690 1 
mediagateway.g450 | 0 MSY-TRPMAJNO[VOICE-Error: Unsupported Media Module 
extraction 019V1, ID=e2a214cc8919d0e4ebf0620beb381a53

<187>Dec 29 15:22:05 g450graf -NoTag: -NoUTC(0 0 0:11:21) 2021 420 1 
mediagateway.g450 | 0 MSY-TRPMAJNO[VOICE-Error: Unsupported Media Module 
insertion 019V1, ID=e2a214cc8919d0e4ebf0620beb381a53

<187>Dec 29 15:19:43 g450graf -NoTag: -NoUTC(0 0 0:08:59) 2021 650 1 
mediagateway.g450 | 0 ICC-TRPMAJNA[VOICE-Error: S8300 carries out SOFT RESET, 
ID=e2a214cc8919d0e4ebf0620beb381a53