Configuration manual

1244 | E-Series ExaScale Debugging and Diagnostics
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The PCDFO polling feature monitors data received over the switch fabric. When a DFO error is detected,
no automatic action is initiated by the system. The message issued is similar to the following.
Figure 63-10 illustrates the SFM architecture. Each ingress and egress FPTM maintaing ten (10) channels
connections to the ExaScale Switch Fabric.
Figure 63-10. E-Series ExaScale Switch Fabric Architecture
Respond to PCDFO events
Troubleshooting PCDFO events requires applying some human intelligence to differentiate between
transient and systematic failures. PCDFO events can be caused by several factors, including:
• Backplane noise
• Data corruption
Message 5 DFO Error Message
%RPM1-P:CP %CHMGR-2-SFM_PCDFO: PCDFO error detected for SFM4
Ingress
FPTM
Egress
FPTM
Ingress
FPTM
Egress
FPTM
TSF
BSC
Agent
TSF3
SFM0
TSF3
SFM1
TSF3
SFM2
TSF3
SFM3
TSF3
SFM4
TSF3
SFM5
TSF3
SFM6
TSF3
SFM7
TSF3
SFM8
TSF3
SFM9
Linecards
Port-Pipe 0
Port-Pipe 1
TSF
BSC
RPM