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Cisco Bug: CSCur62548 - AP2702 generating AES-CCMP errors for PSK SSIDs

Last Modified

Feb 19, 2018

Products (26)

  • Cisco Aironet 3700 Series
  • Cisco AP802 Integrated Access Point
  • Cisco Aironet 1552I Outdoor Access Point
  • Cisco Aironet 1040 Series Access Point
  • Cisco Aironet 2600i Access Point
  • Cisco Aironet 1600i Access Point
  • Cisco Aironet 2700e Access Point
  • Cisco Aironet 1700i Access Points
  • Cisco Aironet 1260 Access Point
  • Cisco Aironet 2700i Access Point
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Known Affected Releases

15.3(3)JAB

Description (partial)

Symptom:
Access points generate the following log errors:

Nov  5 22:48:12.923 UTC: %DOT11-4-CCMP_REPLAY: Client 6033.4b25.7481 had 1 AES-CCMP TSC replays

When this happens, packet drops and high latency are seen on associated clients.

Conditions:
This has been seen to occur when multiple clients are associated and transmitting data on SSIDs configured for pre-shared keys.  SSIDs doing 802.1x are not affected.
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Bug Details Include

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