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Cisco Bug: CSCtd38310 - Port link statusLED unlit when in spanning tree blocking mode.

Last Modified

Feb 01, 2017

Products (103)

  • Cisco Blade Switches for HP
  • Cisco Catalyst 3560E-24TD-S Switch
  • Cisco Catalyst 3560G-48PS Switch
  • Cisco Catalyst 2960-24TC-L Switch
  • Cisco Catalyst 3750G-12S Switch
  • Cisco Catalyst 3560E-48PD-SF Switch
  • Cisco ME 3400EG-2CS-A Switch
  • Cisco Catalyst 3560E-48PD-E Switch
  • Cisco Catalyst 2960-24-S Switch
  • Cisco ME 3400-24TS-A Switch
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Known Affected Releases


Description (partial)


When any of the 4 external uplink ports are in spanning tree blocking mode, the port link status LED is unlit. The LED should remain lit green.


Happens on 301x switch and External port is in spanning tree blocking mode.
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