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Cisco Bug: CSCte45509 - Traceback occurred "%SYS-2-LINKED: Bad enqueue" and L2TP sessions LOST

Last Modified

Feb 28, 2018

Products (1)

  • Cisco IOS

Known Affected Releases

12.2(33)XNF 12.2XN

Description (partial)

Symptoms: A Cisco ASR 1000 series router cannot take over PPP/L2TP sessions
when ISSU. The following traceback can occur:

 %SYS-2-LINKED: Bad enqueue of xxx in queue xxx -Process= "RADIUS"

Therefore all PPP sessions are lost at the time of an RP switchover.

Conditions: The symptom is observed during an ISSU, when the Active RP image is
a previous version and Standby RP image is Cisco IOS Release 12.2(33)XND3.
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