Cisco Bug: CSCtd67034 - Various %CPPHA-3-FAULT errors with FRF.12 or MLP fragment reassembly
Feb 02, 2017
- Cisco ASR 1000 Series Aggregation Services Routers
Known Affected Releases
Symptom: ASR1K "%CPPHA-3-FAULT: F0: cpp_ha: CPP:0 desc:..." and accompanying crash dump of the CPP QFP complex. The various errors which have been seen in association with this problem include: "%CPPHA-3-FAULT: F0: cpp_ha: CPP:0 desc:..." where desc: could be any of the following errors: Desc: ETC_ETC_LOGIC1_LEAF_INT_INT_ETC_LKUP_DATA_ERR Desc: ETC_ETC_LOGIC2_LEAF_INT_INT_GPM_ENQ_VTL_DROP_ERR Desc: GAL_GAL_CSR_IPM_IF_GAL_IPM_IF_LEAF_INT_INT_IPM_ERR Desc: GRW_GPM_GRW_CSR_RDWR_UNIT_0_GPM_RW_LEAF_INT_INT_REQUEST_ERROR Desc: GRW_GPM_GRW_CSR_RDWR_UNIT_1_GPM_RW_LEAF_INT_INT_REQUEST_ERROR Desc: GRW_GPM_GRW_CSR_RDWR_UNIT_2_GPM_RW_LEAF_INT_INT_REQUEST_ERROR Desc: GRW_GPM_GRW_CSR_REQ_TOP_GPM_REQ_LEAF_INT_INT_MAP_ICREQ0_NO_CONTEXT Desc: OPM_OPM_INT_REGS_OPM_META_LEAF_INT_INT_UNDEF_DESC Desc: PQS_PQS_LOGIC1_INTR_LEAF_INT_INT_OUT_OF_RANGE_Q_ERR Desc: SRT_SRT_PAR_ERR_LEAF_INT_INT_STEM_0 Conditions: A corner case issue was discovered where the FRF.12 (Frame Relay Fragmentation) and MLP (Multilink PPP) features were susceptible to various hardware detected error conditions when performing fragment reassembly for cases where the last fragment was a few bytes in length (approx. 4-8 bytes of payload after the protocol headers). This condition has only been seen with high traffic rates in conjunction with the small end fragment condition.
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Bug Details Include
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