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Cisco Bug: CSCta56469 - Moving host between IP phones triggers port-security violation

Last Modified

Jan 31, 2017

Products (51)

  • Cisco Catalyst 3750 Series Switches
  • Cisco Catalyst 3750V2-24PS Switch
  • Cisco Catalyst 3560E-24TD-S Switch
  • Cisco Catalyst 3560E-48PD-E Switch
  • Cisco Catalyst 3560E-48PD-SF Switch
  • Cisco Catalyst 3750G-12S Switch
  • Cisco Catalyst 2960-24-S Switch
  • Cisco Catalyst 3560E-12D-E Switch
  • Cisco Catalyst 2960-48TT-S Switch
  • Cisco Catalyst 3750-24FS Switch
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Known Affected Releases

12.2(50)SE2

Description (partial)

Symptom:

Moving a PC between two IP Phones without disconnecting either phone from the switch triggers a port-security violation.

Conditions:

- Port-security is configured on the interface where the host is being moved to.
- The phone model/software sends triggered CDP when the host is disconnected.
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Bug Details Include

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