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Cisco Bug: CSCte75465 - VMPS BLOCKED entry do not get removed against the NULL VLAN

Last Modified

Feb 22, 2014

Products (81)

  • Cisco Catalyst 3750 Series Switches
  • Cisco Catalyst 2960-48TT-S Switch
  • Cisco Catalyst 3560E-48PD-E Switch
  • Cisco Catalyst 2960-24-S Switch
  • Cisco Catalyst 3560E-12D-E Switch
  • Cisco Catalyst 3560E-48PD-SF Switch
  • Cisco Catalyst 3560G-48PS Switch
  • Cisco Catalyst 3560-12PC-S Compact Switch
  • Cisco ME 3400-24TS-A Switch
  • Cisco Catalyst 2960-24TC-L Switch
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Known Affected Releases

12.2(46)SE

Description (partial)

Symptom:
Under some corner case condition, if primary VMPS server is not available and the switchport is configured for "access vlan dynamic", the switch stops sending queries to VMPS server for a Mac-address with NULL entry because VQP query times out, even if the VMPS Primary server is back up.

Conditions:
This behavior has been observed on a Catalyst 3750 platform running Cisco IOS version 12.2(46)SE
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Bug Details Include

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