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Cisco Bug: CSCtb08426 - 3750 Cross stack LACP delay after master failover

Last Modified

Jan 24, 2017

Products (51)

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

12.2(50)SE2

Description (partial)

Symptom:
 On a 3750 Stack connected to a 3560 or other 3750 stack we can experience
convergence issue when failing over the master and there is an active
portchannel on the master.
 
 Conditions:
 
 Portchannel needs to be cross stack,
 Portchannel needs to be in LACP mode.
 It should be 3 or more switches in the stack.
 
 This is seen on 12.2(50) Software
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