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Cisco Bug: CSCvt20372 - RRM event logging prints meaningless messages

Last Modified

Aug 29, 2020

Products (6)

  • Cisco Catalyst 9800 Series Wireless Controllers
  • Cisco Catalyst 9800-40 Wireless Controller
  • Cisco Catalyst 9800-L-C Wireless Controller
  • Cisco Catalyst 9800-L-F Wireless Controller
  • Cisco Catalyst 9800-80 Wireless Controller
  • Cisco Catalyst 9800-CL Wireless Controller for Cloud

Known Affected Releases

16.12.2s

Description (partial)

Symptom:
WLC logs meaningless messages to syslog after enabling RRM event logging displaying:
+ MAC address not in an understandable format.
+ Power level always chnages from level 1 with no reference to previous level change.

2020-01-15T04:29:18.482-06:00 134.29.79.196(134.29.79.196) 10:29:17 local7 info : %RRM_UTIL-6-SETTXPOWER:< %25RRM_UTIL-6-SETTXPOWER:>' title='http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>' target='_blank'>http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>; Chassis 2 R0/0: wncd: Set transmit power on 802.11a AP 0027.ffffffe3ffffffee.ffffffc5ffffffe0: 1 to 4 Reason due to TPC Algo
    2020-01-15T04:39:48.231-06:00 134.29.79.196(134.29.79.196) 10:39:47 local7 info : %RRM_UTIL-6-SETTXPOWER:< %25RRM_UTIL-6-SETTXPOWER:>' title='http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>' target='_blank'>http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>; Chassis 2 R0/0: wncd: Set transmit power on 802.11a AP 0027.ffffffe3ffffffee.ffffffc5ffffffe0: 1 to 5 Reason due to TPC Algo
    2020-01-15T08:20:18.642-06:00 134.29.79.196(134.29.79.196) 14:20:18 local7 info : %RRM_UTIL-6-SETTXPOWER:< %25RRM_UTIL-6-SETTXPOWER:>' title='http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>' target='_blank'>http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>; Chassis 2 R0/0: wncd: Set transmit power on 802.11a AP 0027.ffffffe3ffffffee.ffffffc5ffffffe0: 1 to 4 Reason due to TPC Algo
    2020-01-15T08:30:48.469-06:00 134.29.79.196(134.29.79.196) 14:30:48 local7 info : %RRM_UTIL-6-SETTXPOWER:< %25RRM_UTIL-6-SETTXPOWER:>' title='http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>' target='_blank'>http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>; Chassis 2 R0/0: wncd: Set transmit power on 802.11a AP 0027.ffffffe3ffffffee.ffffffc5ffffffe0: 1 to 3 Reason due to TPC Algo
    2020-01-15T08:41:18.483-06:00 134.29.79.196(134.29.79.196) 14:41:18 local7 info : %RRM_UTIL-6-SETTXPOWER:< %25RRM_UTIL-6-SETTXPOWER:>' title='http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>' target='_blank'>http://www.cisco.com/cgi-bin/Support/Errordecoder/index.cgi?action=search&counter=0&paging=5&links=reference&index=all&query=%25RRM_UTIL-6-SETTXPOWER:>; Chassis 2 R0/0: wncd: Set transmit power on 802.11a AP 0027.ffffffe3ffffffee.ffffffc5ffffffe0: 1 to 2 Reason due to TPC Algo

Conditions:
Enabling RRM event logging:
ap dot11 24ghz rrm logging channel
ap dot11 24ghz rrm logging coverage
ap dot11 24ghz rrm logging foreign
ap dot11 24ghz rrm logging load
ap dot11 24ghz rrm logging noise
ap dot11 24ghz rrm logging performance
ap dot11 24ghz rrm logging txpower
ap dot11 5ghz rrm logging channel
ap dot11 5ghz rrm logging foreign
ap dot11 5ghz rrm logging load
ap dot11 5ghz rrm logging noise
ap dot11 5ghz rrm logging performance
ap dot11 5ghz rrm logging txpower
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