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Cisco Bug: CSCsz76597 - GSR-FIT: qnet Recieving corrupted Packet in FABRIC-FABQ-3-PRP3_FRFAB_PKT

Last Modified

Jan 27, 2017

Products (1)

  • Cisco 12000 Series Routers

Known Affected Releases

3.9.0.BASE 3.9.0.ROUT

Description (partial)

Symptom:
Under rare conditions likely from backpressure and/or fabric reconfiguration, 
QNET and other fabric applications on the PRP3 may continuously see invalid 
pkts from the fabric most likely due to HW view of the packet memory is 
different from the SW view.


Conditions:
In scale environment with lots of fabric traffic and backpressure scenario 
and/or fabric reconfiguration, one or more packet memory in the from fabric 
HW ring becomes stale and different from software view.
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