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TCP reassembly queue overflows lead to poor performance and possible application disruption in versions of ONTAP 9.3, 9.4 and 9.5

Views:
277
Visibility:
Public
Votes:
1
Category:
ontap-9
Specialty:
network
Last Updated:

Applies to

  • ONTAP 9.5
  • ONTAP 9.4
  • ONTAP 9.3

Issue

A security vulnerability fix in the ONTAP networking stack causes Transmission Control Protocol (TCP) performance to unexpectedly degrade.

Signature 

Command: node run -node <node> netstat -s -p tcp 
Counter: <no. packets> discarded due to memory problems 

 

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