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Cisco Bug: CSCvs53838 - 1-gig transceiver with QSA adapter flaps in a admin down state

Last Modified

Jan 17, 2020

Products (1)

  • Cisco Nexus 9000 Series Switches

Known Affected Releases

9.3(1) 9.3(2)

Description (partial)

Symptom:
1-gig transceiver with a QSA adapter plugged into any port on the N9K-C9336C-FX2 in a admin-down state, we notice the following messages over and over again:

2019 Dec 20 19:12:33 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/23, hardware type changed to QSA
2019 Dec 20 19:12:35 switch %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/23 is down (QSA Present)
2019 Dec 20 19:12:35 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/24, hardware type changed to QSA
2019 Dec 20 19:12:37 switch %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/24 is down (QSA Present)
2019 Dec 20 19:12:37 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/30, hardware type changed to QSA
2019 Dec 20 19:12:37 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/31, hardware type changed to QSA
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/30 is down (QSA Present)
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/31 is down (QSA Present)
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/23, hardware type changed to No-Transceiver
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/23 is down (QSA Present)
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/23, hardware type changed to 1G
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/24, hardware type changed to No-Transceiver
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/24 is down (QSA Present)
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/24, hardware type changed to 1G
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/30, hardware type changed to No-Transceiver
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/30 is down (QSA Present)
2019 Dec 20 19:12:38 switch %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/30, hardware type changed to 1G

Conditions:
Seen with GLC-T and GLC-TE with CVR-QSFP-SFP10G adapter on version 9.3(1) and 9.3(2). 

Device: N9K-C9336C-FX2
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