Cisco Broadband Cable Command Reference Guide

Chapter 4 Cisco Cable Modem Termination System Debugging Commands
debug pxf
Syntax Description
Command Modes Privileged EXEC
Command History
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Cisco Broadband Cable Command Reference Guide
debug pxf
To enable debugging of the Parallel eXpress Forwarding (PXF) subsystems on the active Performance
Routing Engine (PRE1) module on the Cisco uBR10012 router, use the debug pxf command in
privileged EXEC mode. To disable debugging output, use the no form of the command.
debug pxf {dma | microcode | stats | subblocks}
no debug pxf {dma | microcode | stats | subblocks}
Usage Guidelines The debug pxf command enables debugging of the different subsystems that are active on the PXF
processors that are on the PRE1 modules in the Cisco uBR10012 router.
Also, by default the PRE1 modules automatically reload the microcode on the PXF processors in case
of a crash or fault. The debug pxf microcode command disables this automatic reloading of the
microcode, to allow further debugging. When you have finished debugging the PXF processor, you then
must manually reload the microcode on the PXF processor using the microcode reload command.
Examples debug pxf dma
dma Displays debugging information for direct memory access (DMA) buffers,
error counters, and registers on the PXF processor.
microcode Disables the automatic reloading of the microcode on the PXF processors
upon a crash or fault condition. (If a fault or crash occurs, you must manually
load the microcode on the PXF processors using the microcode reload
command.)
stats Displays debugging information for the statistics collector events on the PXF
processor.
subblocks Displays debugging information for changes in the subblocks onboard the
PXF processor.
Release Modification
12.2(4)BC1 This command was introduced for the Cisco uBR10012 universal
broadband router.
The following example shows how to enable debugging of the DMA engine on the PXF processor, as
well as typically debugging messages that appear for the packets sent and received by the ping
command:
Router# debug pxf dma
PXF DMA ASIC debugging is on
Router# ping 11.1.1.1
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