TroubleshootingDescriptionColor
Verify that the Run/Fail LED is green. If so, the card is receiving power. If it
is off, refer to MIO Run/Fail LED States, on page 202 for troubleshooting
information.
No power to card.
OR
Link is down.
None
Verify that the interface is cabled properly.
Verify that the device on which the interface is located is cabled and powered
properly.
MIO – Interface Activity LED States
The Activity LED associated with a 1000Base-T (management) or 10 Gigabit Ethernet port on an
MIO/UMIO/MIO2 daughter card (subscriber traffic) indicates the presence of traffic on the network link.
This LED should be green when data is being transmitted or received over the interface.
The possible states for this LED are described in the following table. If the LED is not green, use the
troubleshooting information in the table to diagnose the problem.
Table 21: MIO
–
Interface Activity LED States
TroubleshootingDescriptionColor
None needed.Traffic is present on the
link
Flashing
Green
None needed if there is no activity on the link. Prior to interface
configuration, this is normal operation.
No traffic is present on
the link
None
Checking the LEDs on the DPC
Each DPC/UDPC or /DPC2/UDPC2 is equipped with status LEDs as listed below:
•
Run/Fail
•
Active
ASR 5500 System Administration Guide, StarOS Release 21.4
206
Troubleshooting
Checking the LEDs on the DPC
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