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Cisco Bug: CSCvs68439 - The peers unidirectional link issue occurred when reload C6807 VSS

Last Modified

May 08, 2020

Products (1)

  • Cisco Catalyst 6000 Series Switches

Known Affected Releases


Description (partial)

When reload C6807 VSS several times , the peer device became unidirectional link.

The below messages outputted.

%PM-4-ERR_DISABLE: udld error detected on Gix/x/x, putting Gix/x/x in err-disable state

Udld normal
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