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Cisco Bug: CSCup79358 - C3KX-SM-10G doesn't pass through any packets after reloading switch

Last Modified

Sep 14, 2019

Products (150)

  • Cisco Catalyst 3750-X Series Switches
  • Cisco Catalyst 3560X-48T-E Switch
  • Cisco Catalyst 2960S-24PD-L Switch
  • Cisco Catalyst 3560X-48U-S Switch
  • Cisco Catalyst 2960S-F48FPS-L Switch
  • Cisco Catalyst 3560X-48P-S Switch
  • Cisco Catalyst 2960C-12PC-L Switch
  • Cisco Catalyst 2960C-8TC-S Switch
  • Cisco Catalyst 2960X-48LPS-L Switch
  • Cisco Catalyst 3560CG-8TC-S Compact Switch
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Known Affected Releases


Description (partial)

After reloading switch, port on C3KX-SM-10G doesn't transmit/receive 
any packets although the link status is up/up.

- 15.2(1)E, E1, E2, E3, and 15.2(2)E is running
- not always occur after reloading switch
- not depend on SFP type
- not depend on specific configuration
- receive counter of the port never increment

This condition may recover by reloading C3KX-SM-10G.
(but the same behavior may be seen after that)
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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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