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Cisco Bug: CSCua81557 - ME 3750 / Sham-link neighborship does not come up with ES ports

Last Modified

Feb 20, 2018

Products (120)

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


Description (partial)

The sham-link is seen to come up but the OSPF neighborship is not established.

this issue is seen only if the MPLS ( core ) facing interface is an ES port (
Gi1/1/1 and 1/1/2).
not seen on lower versions like 12.2(55)SE
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Bug Details Include

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