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Cisco Bug: CSCvt23445 - Cat9400 - Some 3rd-Party phones do not bring up the interface with 'no mdix auto' configured.

Last Modified

Aug 29, 2020

Products (1)

  • Cisco Catalyst 9400 Series Switches

Known Affected Releases

16.12.2

Description (partial)

Symptom:
3rd-party phones with model designation 335, 5000, and 6000 received PoE but do not bring up the interface on 1Gig ports of Cat9400 linecards.

Conditions:
'no mdix auto' must be configured on the interface.
-only 1Gig ports affected
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