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Cisco Bug: CSCsz48543 - LLDP: Phone temporarily flaps to Data VLAN when Chassis ID changes

Last Modified

Feb 22, 2014

Products (28)

  • Cisco Unified IP Phone 7900 Series
  • Cisco Unified IP Phone 7971G-GE
  • Cisco Unified Wireless IP Phone 7920
  • Cisco Unified IP Phone 7962G
  • Cisco Unified IP Phone 7945G
  • Cisco Unified IP Phone Expansion Module 7914
  • Cisco Unified Wireless IP Phone 7925G
  • Cisco Unified IP Phone 7911G
  • Cisco Unified IP Phone 6941
  • Cisco Unified IP Phone 7961G-GE
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Known Affected Releases

8.5(3)

Description (partial)

Symptom:
 Phone may temporarily be seen on the data vlan if the LLDP Chassis ID changes on 
the fly.
 

 Conditions:
 Profinet support is enabled on the switch.
 
 Similar problem may manifest if the phone experiences a link down event on its 
switchport (connected to the switch).
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
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