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Cisco Bug: CSCun07705 - 512-SIT:- OOBA errors on topaz with GRE ingress from core

Last Modified

Jan 14, 2017

Products (1)

  • Cisco Carrier Routing System

Known Affected Releases

5.1.2.BASE

Description (partial)

Symptom:
Console will observe these errors:- 
npu_driver[269]: %PLATFORM-CIH-3-ASIC_ERROR_SPECIAL_HANDLE_THRESH : npu[0]: A descriptor-err error has occurred. dpe0_csr32.dpe_err_hier_int.dpe_cpe0_csr32.dpe_cpe_err_leaf_int.int_cpe_ooba_err  Threshold has been exceede

Conditions:
In release 5.1.1 & 5.1.2, if the mvpn GRE is enable on the RTR with MSC-40/MSC-140 and  MSC-X. Also ,  if MSC-X is placed towards core facing links/bundle , mvpn GRE control packets or mvpn GRE data packet over GRE tunnel can cause a transient error mentioned in symptoms field.
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