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Cisco Bug: CSCvu28021 - Catalyst 9k Crash Processing Packet via NBAR

Last Modified

Sep 10, 2020

Products (1)

  • Cisco Catalyst 9200 Series Switches

Known Affected Releases

16.12.2

Description (partial)

Symptom:
The switch crashes due to a fault in the FED process:

Switch uptime is X days, XX hours, XX minutes
Uptime for this control processor is X day, X hours, X minutes
System returned to ROM by Critical process fed fault on fp_0_0 (rc=139) at [Date]
System restarted at [Date]
System image file is "flash:packages.conf"
Last reload reason: Critical process fed fault on fp_0_0 (rc=139)

Conditions:
NBAR is configured, and the switch receives a packet that requires Deep Packet Inspection. Specifics about the type of packet that can trigger the crash is unknown, but it is rare, and likely requires there to be some corruption in the packet header data.
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Bug Details Include

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