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Cisco Bug: CSCuq77263 - Qlog tarpit mechanism takes ESAs out of operation

Last Modified

Feb 14, 2018

Products (1)

  • Cisco Email Security Appliance

Known Affected Releases

8.5.6-063 8.5.6-092

Description (partial) 

Symptom:
Email slows to a crawl while status logs and displays shows the appliance using virtually no CPU.

Conditions:
This problem will occur on any ESA filling up its reporting journal.  This normally only occurs when reporting goes out of operation.  The issue also occurs on ESAs with NIC pairing enabled, and that is still under investigation.
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