Symptom

DS3_ADMIN_DOWN alarm persists after no shut of the controller R1#sh facility-alarm status | sec 0/4/0 T3 0/4/0 Mar 30 2020 22:24:10 CRITICAL DS3_RX_LOS Receiver has loss of signal [3] T3 0/4/0 Mar 30 2020 22:24:10 CRITICAL DS3_LINK_DOWN Ds3 Port Link Down [9] R1#sh facility-alarm status | sec 0/11/0 T3 0/11/0 Mar 30 2020 22:24:10 CRITICAL DS3_RX_LOS Receiver has loss of signal [3] T3 0/11/0 Mar 30 2020 22:24:10 CRITICAL DS3_LINK_DOWN Ds3 Port Link Down [9] R1# R1#conf t Enter configuration commands, one per line. End with CNTL/Z. R1(config)#controller t3 8/0/0 R1(config-controller)#shut R1(config-controller)#do sh facility-alarm status | sec 0/4/0 T3 0/4/0 Mar 30 2020 22:27:23 INFO DS3_ADMIN_DOWN Ds3 Port Admin Down [10] R1(config-controller)#do sh facility-alarm status | sec 0/11/0 T3 0/11/0 Mar 30 2020 22:27:23 INFO DS3_ADMIN_DOWN Ds3 Port Admin Down [10] R1(config-controller)#no shut R1(config-controller)#do sh facility-alarm status | sec 0/4/0 T3 0/4/0 Mar 30 2020 22:27:23 INFO DS3_ADMIN_DOWN Ds3 Port Admin Down [10] R1(config-controller)#do sh facility-alarm status | sec 0/11/0 T3 0/11/0 Mar 30 2020 22:27:23 INFO DS3_ADMIN_DOWN Ds3 Port Admin Down [10]

Conditions

NCS42xx Two cards NCS4200-48T3E3-CE set up with card-protection T3 controller mode Shut/no shut of one controller T3 controller operates correctly in shut/no shut config.

Workaround

If ports are connected, the false alarm will be cleared

Further Problem Description