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74
•
In IRF mode:
<Sysname> display alarm
Chassis Slot Level Info
1 6 ERROR Fan 2 is absent.
1 6 ERROR Power 2 is absent.
1 6 ERROR The board in slot 10 is faulty.
2 3 WARNING The temperature of sensor 3 exceeds the lower limit.
Table 21
Command output
Field Description
Chassis
ID of the IRF member switch with an alarm.
If the value is a hyphen (-), the alarm was generated by the chassis.
Slot
Number of the slot where the card resides.
Level
Alarm severity. Possible values include ERROR, WARNING, NOTICE,
and INFO, in descending order.
Info
Detailed alarm information.
The board in slot
n
is faulty.
The card in slot
n
is starting up or faulty.
Verifying and diagnosing transceiver modules
At present, there are three types of commonly used transceivers, as shown in
. They can be
further divided into optical transceivers and electrical transceivers based on transmission medium.
Table 22
Commonly used transceivers
Transceiver type
Application scenarios
Whether
can be an
optical
transceiver
Whether
can be an
electrical
transceiver
SFP (Small Form-factor Pluggable)
Generally used for 100M/1000M
Ethernet interfaces or POS
155M/622M/2.5G interfaces
Yes Yes
SFP+ (Enhanced 8.5 and 10 Gigabit
Small Form-factor Pluggable)
Generally used for 10G Ethernet
interfaces
Yes Yes
XFP (10-Gigabit small Form-factor
Pluggable)
Generally used for 10G Ethernet
interfaces
Yes No
Verifying transceiver modules
You can verify the genuineness of a transceiver module in the following ways:
•
Display the key parameters of a transceiver module, including its transceiver type, connector type,
central wavelength of the transmit laser, transfer distance and vendor name.
•
Display its electronic label. The electronic label is a profile of the transceiver module and contains
the permanent configuration including the serial number, manufacturing date, and vendor name.
The data is written to the storage component during debugging or testing.
To verify transceiver modules, execute the following command in any view:
Summary of Contents for 12500 Series
Page 36: ...30 Figure 28 Installing an upper expansion cable management bracket 1 2 3 4 5 6 7 ...
Page 98: ...92 Figure 70 Replacing a card for the 12504 A Card to be removed B Card to be installed ...
Page 128: ...122 Figure 81 Loopback operation on an optical transceiver ...
Page 143: ...137 Figure 96 Example of a device label ...
Page 146: ...140 Cable management examples Figure 100 Network cable management ...