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a.
Use the
display transceiver diagnosis interface
command to view the present
measured values of the digital diagnosis parameters for the transceiver module.
<Sysname> display transceiver diagnosis interface HundredGigE1/0/25
HundredGigE1/0/25 transceiver diagnostic information:
Current diagnostic parameters:
[module] Temp.(°C) Voltage(V)
23 3.33
[channel] Bias(mA) RX power(dBm) TX power(dBm)
1 33.82 0.99 0.36
2 34.59 1.15 0.35
3 35.56 0.85 0.10
4 33.78 -0.39 0.20
Alarm thresholds:
Temp.(°C) Voltage(V) Bias(mA) RX power(dBm) TX power(dBm)
High 78 3.63 105.00 3.30 5.30
Low -5 2.97 8.00 -17.70 -11.00
b.
If the optical power of the transceiver module is not within the correct range, replace the
transceiver module with a transceiver module of the same model that is operating correctly.
3.
Verify that the port configurations are correct:
a.
Execute the
display interface brief
command.
b.
Determine whether the speed and duplex mode of the port match the speed and duplex
mode of the peer port.
c.
If they do not match, use the
speed
command and the
duplex
command to set the speed
and duplex mode for the port.
4.
Verify that the link medium connected to the port is operating correctly.
Plug the link medium into a new port that is operating correctly. If error frames still exist, replace
the link medium.
5.
Determine whether the port has received a large amount of flow control frames:
a.
Use the
display interface
command to view the number of pause frames.
If the number of pause frames is accumulating, you can determine that the port has sent or
received a large amount of flow control frames.
b.
Verify that the incoming traffic and outgoing traffic have not exceeded the maximum traffic
processing capability of the local device and the peer device.
6.
If the issue persists, collect diagnostic information and contact H3C Support.
To collect diagnostic information, execute the
display diagnostic-information
command to display or save running status data for multiple feature modules.
<Sysname> display diagnostic-information
Save or display diagnostic information (Y=save, N=display)? [Y/N]:Y
Failure to receive packets
Symptom
A port is up, but it cannot receive packets.