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Cisco Bug: CSCsy82158 - Corrupt Multicast packet triggers PXF crash, small packet handle

Last Modified

Jan 28, 2017

Products (1)

  • Cisco 10000 Series Routers

Known Affected Releases

12.2(31)SB9b 12.2(33)SB

Description (partial)

Symptoms: A corrupt multicast packet may crash the PXF on a Cisco 10000 series 
router with the following exception error:

"PXF DMA Error -Small Packet Handle Creating a Large Descriptor, Restarting 
PXF"

Conditions: The issue is seen when a padded multicast packet is switched by 
the PXF and the IP length, from the IP Header, does not include this padding.

For example, a multicast packet where the IP length is 124 bytes and there is 
436 of unaccounted padding can crash the PXF with a "PXF DMA Error".
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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