I recently ran into a power supply issue on a Cisco 3850 switch. The PSU 1B Sys Pwr status displayed No Response even though the switch detects it and draws 1100 watts of power. Cisco's usual convention for ports and modules starts from right to left but the PSU is different. PSU A is on the LEFT and PSU B is on the RIGHT. I mistakenly pulled PSU 1A so I put it back and reseat PSU 1B instead and status were all good afterwards.
C3850#show environment ?
all Show all environment status
fan Show fan status
power Show power supply status
stack Show Stack-wide all environment status
temperature Show temperature status
C3850#show environment power
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C1-1100WAC DTN1903V2Q3 OK Good Good 1100
1B PWR-C1-1100WAC DTN1903V2AX No Response Good Good 1100
*Jan 14 19:54:39.586: %NGWC_PLATFORM_FEP-1-FRU_PS_SIGNAL_FAULTY: Switch 1: signal on power supply A is faulty
C3850#
*Jan 14 19:54:44.623: %NGWC_PLATFORM_FEP-6-FRU_PS_OIR: Switch 1: FRU power supply A removed
C3850#
*Jan 14 19:54:55.687: %NGWC_PLATFORM_FEP-6-FRU_PS_OIR: Switch 1: FRU power supply A inserted
C3850#
*Jan 14 19:54:55.687: %NGWC_PLATFORM_FEP-1-FRU_PS_ACCESS: Switch 1: power supply A is not responding
C3850#
*Jan 14 19:54:58.714: %NGWC_PLATFORM_FEP 1-FRU_PS_SUSTAINED_OVERLOAD_RECOVERY: Switch 1: power supply A recovered from sustained overload condition.
C3850#
*Jan 14 19:55:50.934: %NGWC_PLATFORM_FEP-1-FRU_PS_SIGNAL_FAULTY: Switch 1: signal on power supply B is faulty
C3850#show environment power
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C1-1100WAC DTN1903V2Q3 OK Good Good 1100
1B PWR-C1-1100WAC DTN1903V2AX No Input Power Bad Bad 1100
C3850#
*Jan 14 19:56:17.254: %NGWC_PLATFORM_FEP-1-FRU_PS_SIGNAL_OK: Switch 1: signal on power supply B is restored
C3850#show environment power
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C1-1100WAC DTN1903V2Q3 OK Good Good 1100
1B PWR-C1-1100WAC DTN1903V2AX OK Good Good 1100
C3850#show environment ?
all Show all environment status
fan Show fan status
power Show power supply status
stack Show Stack-wide all environment status
temperature Show temperature status
C3850#show environment power
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C1-1100WAC DTN1903V2Q3 OK Good Good 1100
1B PWR-C1-1100WAC DTN1903V2AX No Response Good Good 1100
*Jan 14 19:54:39.586: %NGWC_PLATFORM_FEP-1-FRU_PS_SIGNAL_FAULTY: Switch 1: signal on power supply A is faulty
C3850#
*Jan 14 19:54:44.623: %NGWC_PLATFORM_FEP-6-FRU_PS_OIR: Switch 1: FRU power supply A removed
C3850#
*Jan 14 19:54:55.687: %NGWC_PLATFORM_FEP-6-FRU_PS_OIR: Switch 1: FRU power supply A inserted
C3850#
*Jan 14 19:54:55.687: %NGWC_PLATFORM_FEP-1-FRU_PS_ACCESS: Switch 1: power supply A is not responding
C3850#
*Jan 14 19:54:58.714: %NGWC_PLATFORM_FEP 1-FRU_PS_SUSTAINED_OVERLOAD_RECOVERY: Switch 1: power supply A recovered from sustained overload condition.
C3850#
*Jan 14 19:55:50.934: %NGWC_PLATFORM_FEP-1-FRU_PS_SIGNAL_FAULTY: Switch 1: signal on power supply B is faulty
C3850#show environment power
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C1-1100WAC DTN1903V2Q3 OK Good Good 1100
1B PWR-C1-1100WAC DTN1903V2AX No Input Power Bad Bad 1100
C3850#
*Jan 14 19:56:17.254: %NGWC_PLATFORM_FEP-1-FRU_PS_SIGNAL_OK: Switch 1: signal on power supply B is restored
C3850#show environment power
SW PID Serial# Status Sys Pwr PoE Pwr Watts
-- ------------------ ---------- --------------- ------- ------- -----
1A PWR-C1-1100WAC DTN1903V2Q3 OK Good Good 1100
1B PWR-C1-1100WAC DTN1903V2AX OK Good Good 1100
No comments:
Post a Comment