Troubleshooting Hardware; Mpu Reboot Failure; Symptom - HP FlexFabric 12900 series Troubleshooting Manual

Question
Are there packet attacks on
CPU?
Records in the local log
buffer
Does the local log buffer
contain exception records?

Troubleshooting hardware

This section provides troubleshooting information for common hardware problems.
NOTE:
This section describes how to troubleshoot MPUs, LPUs, power supplies, and fan trays. To troubleshoot
transceiver modules, ports, and temperature alarms, see
system management."

MPU reboot failure

Symptom

An MPU fails to reboot.
Command or method
debug rxtx softcar show
•
In standalone mode:
local logbuffer slot
slot-number display
•
In IRF mode:
local logbuffer chassis
chassis-number slot
slot-number display
16
Result Remarks
Execute the debug rxtx
□OK
softcar show command in
□Not OK
probe view to view packet
□Not related
rate limit information for
cards.
The CPU is under attack if
the number of packets of a
type keeps increasing
unusually.
Execute the local logbuffer
display command in probe
view.
If the local log buffer
contains exception records,
contact HP Support to
troubleshoot the exceptions.
Use the following
□OK
commands in probe view to
□Not OK
clear the history records
after the exceptions are
□Not related
removed:
•
•
"Troubleshooting ports" and
In standalone mode:
local logbuffer slot
slot-number clear
In IRF mode:
local logbuffer chassis
chassis-number slot
slot-number clear
"Troubleshooting