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Cisco Bug: CSCul21786 - 2960G LOOP packet behavior investigation

Last Modified

Feb 16, 2018

Products (142)

  • Cisco Catalyst 2960 Series Switches
  • Cisco Catalyst 3560E-48PD-SF Switch
  • Cisco Catalyst 2960-24TC-L Switch
  • Cisco Catalyst 3560E-48PD-E Switch
  • Cisco Catalyst 3750V2-24PS Switch
  • Cisco Catalyst 3750V2-24FS Switch
  • Cisco Catalyst 2960G-24TC-L Switch
  • Cisco Catalyst 3560E-24TD-S Switch
  • Cisco Catalyst 3560G-48PS Switch
  • Cisco ME 3400EG-2CS-A Switch
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Known Affected Releases

12.2(55)SE8

Description (partial)

Symptom:
Connect 2960 to a PC, from capture, it can be seen that 2960 is sending loopback packet instead of keepalive.

Conditions:
This issue is seen on catalyst switch
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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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