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Cisco Bug: CSCvs14673 - SVL node may get removed if one of the SVL links goes bad.

Last Modified

Sep 02, 2020

Products (1)

  • Cisco Catalyst 9500 Series Switches

Known Affected Releases


Description (partial)

Cat9k StackWise Virtual pair may break under certain circumstances with current timeout setting for Link Management Protocol (LMP) and StackWise Discovery Protocol (SDP) protocols

such a condition would be one of the StackWise Virtual Links being physically damaged [either the fiber or the transceiver] in a way that results CRC errors occur [thus traffic passing via this link will be corrupted]  but the link remains in up/up state

If both LMP and SDP packets are hashed to such a malfunctioning link it could result in peer node in SVL pair being disconnected
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