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Cisco Bug: CSCvh64426 - ACI: auto-mdix is disabled on -EX switch

Last Modified

Oct 10, 2019

Products (19)

  • Cisco Nexus 9000 Series Switches
  • Cisco Nexus 9516 Switch
  • Cisco Nexus 93108TC-FX Switch
  • Cisco Nexus 9396TX Switch
  • Cisco Nexus 9396PX Switch
  • Cisco Nexus 93120TX Switch
  • Cisco Nexus 9504 Switch
  • Cisco Nexus 9372TX-E Switch
  • Cisco Nexus 93108TC-EX Switch
  • Cisco Nexus 9332PQ Switch
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Known Affected Releases


Description (partial)

The RJ45 link does not come up when connecting to an N9K-C93108TC-EX switch at 100 Mbps.

This issue has been seen on the N9K-C93108TC-EX switch model for 100Mbps.  The root cause is that auto-mdix is disabled on the phy for the -EX switch.  If the connecting device does not have auto-mdix capabilities, then the link might fail to come online.
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