User's Manual

Configuration Guide of XGS-5240-Series
148
Ethernet 1/0/22 transceiver threshold-violation information:
Transceiver monitor is disabled. Monitor interval is set to 30 minutes.
The last threshold-violation doesn’t exist.
17.4 DDM Troubleshooting
If problems occur when configuring DDM, please check whether the problem is caused by
the following reasons:
 Ensure that the transceiver of the fiber module has been inserted fast on the port, or else
DDM configuration will not be shown.
 Ensure that SNMP configuration is valid, or else the warning event cannot inform the
network management system.
 Because only some boards and box switches support SFP with DDM or XFP with DDM,
ensure the used board and switch support the corresponding function.
 When using show transceiver command or show transceiver detail command, it cost
much time due to the switch will check all ports, so it is recommended to query the
monitoring information of the transceiver on the specified port.
 Ensure the threshold defined by the user is valid. When any threshold is error, the
transceiver will give an alarm according to the default setting automatically.
 The DDM information of QSFP+ port does not support transmission power (TX power), it
is determined by SFF-8436.
 If QSFP+ port is configured as 40G mode, it will show the DDM information of all 4
channels; if it is configured as 4x10G mode, it only shows the channel information related
to the current 10G port.
 DAC wire has optical module itself, if the wire is passive mode, there is no DDM
information; if the wire is active mode, DDM information can be viewed.