Symptom

Reload of RP and failure of fabric links RP/0/RP0/CPU0:Aug 4 13:15:27.034 IST: pfm_node_rp[367]: %PLATFORM-DIAGS-3-FAB_MCAST_SC0_FAILED : Set|online_diag_rsp[9670]|Fabric loopback Test(0x2000003)|threshold is 3, MC failure mask is 0x108. RP/0/RP0/CPU0:Aug 4 13:15:27.034 IST: pfm_node_rp[367]: %PLATFORM-DIAGS-0-GENERIC_FAIL_RECOVER : Set|online_diag_rsp[9670]|Fabric loopback Test(0x2000003)|MC failure threshold 3 crossed, MC failure mask is 0x108. RP/0/RP0/CPU0:Aug 4 13:15:27.034 IST: pfm_node_rp[367]: %PKT_INFRA-FM-2-FAULT_CRITICAL : ALARM_CRITICAL :Board Reload :DECLARE :0/RP0/CPU0: Card reset requested by XR: Process ID: 9670 (online_diag_rsp), Target node: 0/RP0/CPU0, CondID: 439 RP/0/RP1/CPU0:Aug 4 13:21:56.839 IST: pfm_node_rp[247]: %PLATFORM-DIAGS-0-GENERIC_FAIL_RECOVER : Set|online_diag_rsp[9234]|Fabric loopback Test(0x2000003)|MC failure threshold 3 crossed, MC failure mask is 0x108. Fabric fault on FC3: RP/0/RP0/CPU0:ios#RP/0/RP0/CPU0:Aug 4 13:32:34.541 IST: pfm_node_rp[367]: %PLATFORM-CROSSBAR-2-ACCESS_FAILURE : Set|fab_xbar_sp3[5547]|0x1017000|0 on XBAR_0_Slot_25 RP/0/RP0/CPU0:Aug 4 13:32:34.541 IST: pfm_node_rp[367]: %PLATFORM-CROSSBAR-2-ACCESS_FAILURE : Set|fab_xbar_sp3[5547]|0x101702a|0 on XBAR_1_Slot_25 Count 0

Conditions

This issue occurs mainly when there is some issue with the fabric path in the chassis. (RSP or RP+FC). As recovery, the online diags reloads the RP card.

Workaround

NA

Further Problem Description