Use the clear logging onboard {slot|module|bay} {slotnumber/subslotnumber|modulenumber} {dram | message | serdes | temperature | voltage|firmware} command to clear OBFL logging.
The following example shows how to clear firmware version:
Router# clear logging onboard slot R0 firmware
Router# clear logging onboard bay 4/4 firmware
Following example shows how to clear DRAM ECC error log:
Router# clear logging onboard slot R0 dram
Following example shows how to clear OBFL error message:
Router# clear logging onboard slot R0 message
Following example shows how to clear onboard serdes log:
Router# clear logging onboard slot R0 serdes
Following example shows how to clear onboard temperature log:
Router# clear logging onboard slot R0 temperature
Following example shows how to clear onboard voltage log:
Router# clear logging onboard slot R0 voltage