Guest

Preview Tool

Cisco Bug: CSCuo28198 - 2.4GHz radio channel sometimes changed with unknown reason

Last Modified

Mar 02, 2018

Products (1)

  • Cisco 5500 Series Wireless Controllers

Known Affected Releases

7.4(121.0)

Description (partial)

Symptom:
2.4GHz radio channel sometimes changed with unknown reason, WLC should include a correct reason to show traplog and SNMP Trap packet.

// WLC Traplog //
 Channel changed for Base Radio MAC: xx:xx:xx:xx:x
 x:xx on 802.11b/g radio. Old Channel: 11. New Cha
 nnel: 6. Why: none. Energy before/after change: -
 67/-91. Noise before/after change: 127/127. Inter
 ference before/after change: 127/127.

 // PI event //
Channel changed due to 'None', from '11' to '6' on interface '802.11b/g' of AP 'AP_Hostname', connected to Controller 'xxx.xxx.xxx.xxx'. Interference Energy before update was '-67' and after update is '-91'. Noise before update was '127' and after update is '127'. Interference before update was '127' and after update is '127'.

Conditions:
Software: 7_4_121_0
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.