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Cisco Bug: CSCuq29503 - SYS-6-STACKLOW with Flow Exporter enabled

Last Modified

Oct 31, 2019

Products (96)

  • Cisco IOS
  • Cisco C897VA Integrated Services Router
  • Cisco 819 Hardened Integrated Services Router
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco 886VAG 3G Integrated Services Router
  • Cisco VG204XM Analog Voice Gateway
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 2951 Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco 861W Integrated Services Router
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Known Affected Releases


Description (partial)

Device may unexpectedly reset due to:

%SYS-6-STACKLOW: Stack for process Flow Exporter Timer Admin running low, 0/6000

As soon as this message is seen the device will reset and return to normal operations.

Device has Flow Monitor configured in such a way that it will monitor its own exports, i.e. the exporter has output-features enabled, or the exporter is sending via a tunnel and the monitor is configured on the physical interface of that tunnel.

The cache also has to be full and entering Emergency Ageing mode (can be checked from "show flow monitor NAME statistics).
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