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Cisco Bug: CSCvs35270 - B22 FEX sends excessive err-disable MTS to ethpm after leaf reload

Last Modified

Aug 28, 2020

Products (24)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 93108TC-FX Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 93120TX Switch
  • Cisco Nexus 93240YC-FX2 Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 9332C Switch
  • Cisco Nexus 93108TC-EX Switch
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Known Affected Releases


Description (partial)

+ See excessive "Transceiver removed" events for interfaces connected to B22 FEX
+ In ethpm, see excessive err-disable MTS for ports that are non-sticky-externally-disabled / Disabled by Server Mgr. These messages are sent once per second per port.
+ High SSD usage on leaf switch

leaf1# show system internal ethpm info trace | egrep "Ethernet[0-9]+/[0-9]+/[0-9]+\),event_id \(111\), event_cat \(2\)"
2019 Dec  5 18:22:43.247630 ethpm_get_data_from_queue(950): dequeued pending queue 4 msg: rid (0xRID_PORT: Ethernet101/1/3),event_id (111), event_cat (2)
2019 Dec  5 18:22:42.219506 ethpm_get_data_from_queue(950): dequeued pending queue 4 msg: rid (0xRID_PORT: Ethernet101/1/16),event_id (111), event_cat (2)
2019 Dec  5 18:22:42.183439 ethpm_get_data_from_queue(950): dequeued pending queue 4 msg: rid (0xRID_PORT: Ethernet101/1/15),event_id (111), event_cat (2)

+ B22 FEX is configured to leaf switch
+ The FEX enclosure has at least one empty blade slot / at least one port is non-sticky-externally-disabled / Disabled by Server Mgr
+ The leaf switch is reloaded
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