%PHY-4-EXCESSIVE_ERRORS: Excessive FCS, data, or idle word errors found on interface Gi3/0/8

Error Message PHY-4-EXCESSIVE_ERRORS: Excessive FCS, data, or idle word
errors found on interface [chars].Explanation This message means
that the system detected excessive frame check sequence (FCS), data word, or
idle word errors on the specified interface.Recommended Action Enter
the show interface privileged EXEC command on the specified interface, and check
for cyclic redundancy check (CRC) and other input errors. If errors are
excessive, enter the shutdown interface configuration command and then the no
shutdown interface configuration command to reset the interface.
先查看端口，没啥问题就重启