7
Execute the
display hardware internal module serial interface-number statistics
command in probe view to collect statistics of the serial interface, including the CPU
statistics.
Execute the
display hardware internal module cpos
interface-number
statistics
command in probe view to collect the FPGA information of the interface module
.
Data link layer protocol flapping or traffic
forwarding failure on serial interface
Symptom
The data link layer protocol state flaps or the traffic forwarding fails on the serial interface.
Solution
To resolve the problem:
1.
If the serial interface is physically down, follow the steps described in "
" to resolve the problem.
2.
If the problem persists, collect the following statistics and contact H3C Support:
Execute the
display hardware internal module
interface-number
command in probe view
to determine whether the serial interface has received or sent error packets and collect
packet statistics.
Use the
debugging physical packet
command to enable packet debugging on both
devices to verify that they can correctly send and receive packets. Collect packet sending
and receiving statistics.
Execute the
display hardware internal module cpos interface-number
statistics
command in probe view to collect statistics of the CPOS interface.
Execute the
display hardware internal module cpos interface-number
reg
0
command in
probe view to collect the CPLD information of the CPOS interface.
Execute the
display hardware internal module cpos interface-number
reg
1
command in
probe view to collect the FPGA information of the CPOS interface.
Collect the chip register information of the CPOS interface by executing the following
commands in probe view:
−
display hardware internal module cpos interface-number
reg
2
.
−
display hardware internal module cpos interface-number
reg
3
.
−
display hardware internal module cpos interface-number
reg
4
.
Execute the
display hardware internal module serial interface-number statistics
command in probe view to collect statistics of the serial interface, including the CPU
statistics.
Execute the
display hardware internal module cpos
interface-number
statistics
command in probe view to collect the FPGA information of the interface module
.
Related commands
This section lists the commands that you might use for troubleshooting CPOS interfaces.
