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Cisco Bug: CSCvs21819 - C9300-24S not recognising SFP transceivers on a contiguous group of 8 ports

Last Modified

Jan 22, 2020

Products (1)

  • Cisco Catalyst 9300 Series Switches

Known Affected Releases

16.12.1

Description (partial)

Symptom:
Cat9300-24S almost fully populated with transceivers on downlink ports as well as C9300-NM-8X uplink module will  not recognise SFP transceivers on a contiguous group of 8 ports

Range of 8 interfaces will report media type as unknown and transceiver is not recognised in inventory and in logs we can see that the transceiver is not supported

Example of of the issue on the first port group
GigabitEthernet1/0/1 is down, line protocol is down (notconnect)
  Full-duplex, 1000Mb/s, link type is auto, media type is unknown
GigabitEthernet1/0/2 is down, line protocol is down (notconnect)
  Auto-duplex, Auto-speed, link type is auto, media type is unknown
GigabitEthernet1/0/3 is down, line protocol is down (notconnect)
  Auto-duplex, Auto-speed, link type is auto, media type is unknown
GigabitEthernet1/0/4 is down, line protocol is down (notconnect)
  Auto-duplex, Auto-speed, link type is auto, media type is unknown
GigabitEthernet1/0/5 is down, line protocol is down (notconnect)
  Auto-duplex, Auto-speed, link type is auto, media type is unknown
GigabitEthernet1/0/6 is down, line protocol is down (notconnect)
  Auto-duplex, Auto-speed, link type is auto, media type is unknown
GigabitEthernet1/0/7 is down, line protocol is down (notconnect)
  Auto-duplex, Auto-speed, link type is auto, media type is unknown
GigabitEthernet1/0/8 is down, line protocol is down (notconnect)
  Auto-duplex, Auto-speed, link type is auto, media type is unknown

*Nov  7 09:25:24.721: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Gi1/0/1 is not supported
*Nov  7 09:25:25.897: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Gi1/0/2 is not supported
*Nov  7 09:25:27.080: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Gi1/0/3 is not supported
*Nov  7 09:25:28.316: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Gi1/0/4 is not supported
*Nov  7 09:25:29.441: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Gi1/0/5 is not supported
*Nov  7 09:25:30.625: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Gi1/0/6 is not supported
*Nov  7 09:25:31.807: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Gi1/0/7 is not supported
*Nov  7 09:25:32.988: %PLATFORM_PM-6-MODULE_ERRDISABLE: The inserted SFP module with interface name Gi1/0/8 is not supported

Conditions:
Cat9300-24S
16.11.1c or 16.12.1
almost fully populated with transceivers on downlink ports as well as C9300-NM-8X uplink module
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