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Cisco Bug: CSCvs67040 - cosmetic: N9K false positive low current alarm raised after shut/no shut 10G SFP in QSFP/QSA

Last Modified

Oct 06, 2020

Products (67)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 93600CD-GX Switch
  • Cisco Nexus 3548-X Switch
  • Cisco Nexus 3548 Switch
  • Cisco Nexus 3636C-R Switch
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 92348GC-X Switch
  • Cisco Nexus 3132Q-V Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 3064 Switch
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Known Affected Releases

7.0(3)I7(7) 9.3(3)

Description (partial)

Symptom:
low current alarm message printed when shut/no shut interface e1/49-54 where QSA+10G SFP inserted even though current value in DOM is correct. alarm log will be automatically cleared in 5min.

switch(config-if-range)# show logging last 10
2020 Jan 14 04:13:31 switch %ETHPORT-5-IF_UP: Interface Ethernet1/49 is up in mode access
2020 Jan 14 04:13:34 switch %ETHPORT-5-SPEED: Interface Ethernet1/51, operational speed changed to 10 Gbps
2020 Jan 14 04:13:34 switch %ETHPORT-5-IF_DUPLEX: Interface Ethernet1/51, operational duplex mode changed to Full
2020 Jan 14 04:13:34 switch %ETHPORT-5-IF_RX_FLOW_CONTROL: Interface Ethernet1/51, operational Receive Flow Control state changed to off
2020 Jan 14 04:13:34 switch %ETHPORT-5-IF_TX_FLOW_CONTROL: Interface Ethernet1/51, operational Transmit Flow Control state changed to off
2020 Jan 14 04:13:34 switch %ETHPORT-5-IF_UP: Interface Ethernet1/51 is up in mode access
2020 Jan 14 04:14:08 switch %ETHPORT-3-IF_SFP_ALARM: Interface Ethernet1/49, Low Current Alarm
2020 Jan 14 04:14:19 switch %ETHPORT-3-IF_SFP_ALARM: Interface Ethernet1/51, Low Current Alarm
2020 Jan 14 04:19:08 switch %ETHPORT-3-IF_SFP_ALARM: Interface Ethernet1/49, Low Current Alarm cleared
2020 Jan 14 04:19:19 switch %ETHPORT-3-IF_SFP_ALARM: Interface Ethernet1/51, Low Current Alarm cleared

Conditions:
QSA+ 10G SFP inserted on port
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