Hello,Last week an SFP GLC-SX-MM gave the following errors in the log:Mar 3 11:34:59: %OSPF-5-ADJCHG: Process 1, Nbr 10.14.254.254 on GigabitEthernet1/1 from FULL to DOWN, Neighbor Down: Interface down or detached - ctw_check_error_bit - on!!!!!! - ...