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Cisco Bug: CSCvt17460 - SVL/DAD links will be err-disabled when there is link-flap due to faulty SFPs

Last Modified

Sep 10, 2020

Products (1)

  • Cisco Catalyst 9500H Series Switches

Known Affected Releases

16.12.2 16.12.3

Description (partial)

Symptom:
If due to faulty SFPs if there is link flap getting generated on the SVL/DAD links, that specific SVL/DAD link will be err-disabled and the corresponding SVL/DAD link interface will be placed in err-disabled state.

Conditions:
err-disabling is enabled by default on all the links Cat9k.
If there is any link flaps getting generated due to faulty/bad SFP on the SVL link, then that specific SVL/DAD link will be marked as down and that interface will be put into err-disabled state
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