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Cisco Bug: CSCsz09731 - PXM45 high cpu due to pnccb task, MPSM NAK reason code change needed

Last Modified

Feb 22, 2014

Products (1)

  • Cisco MGX 8800 Series Switches

Known Affected Releases


Description (partial)

 PXM CPU utilization is going high due to PnCcb task.
 When CPU utilization is high, customer is unable to manage the node.  The 
CLI becomes extemely unresponsive.
 1.  Single ended SPVCs with non-existent FR slave end on the MPSM(dangling 
 2.  Non-persistent blocking option on the MPSM FR port (Slave End) is set 
to "NO"
 3.  Complex node respresentation is used on Master End
 4.  On-Demand Routing Policy on the master end node is "Best-Fit"
 Note: The issue of high CPU usage is not always reproducible under the 
mentioned conditions.
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  • Status
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