Chapter 3 Troubleshooting

Table 7 ALM LED Troubleshooting

STEPS

CORRECTIVE ACTION

 

 

2Ensure that the IES is installed in a well-ventilated area and that normal operation of the fans is not inhibited. Keep the bottom, top and all sides clear of obstructions and away from the exhaust of other equipment.

3If the voltage levels are outside the allowed range, take a screen shot of the sys monitor status command display and contact your vendor.

3.2Data Transmission

The link is up, but data cannot be transmitted.

Table 8 Data Transmission Troubleshooting

STEPS

CORRECTIVE ACTION

1

Check the line card’s port isolation settings.

 

If the subscriber is having problems with video or other high-bandwidth services, make

 

sure the line card’s port’s data rates are set high enough.

 

 

2

Check the VLAN configuration.

 

 

3

Ping the MSC from a computer at the subscriber’s location.

 

If you cannot ping, connect a Ethernet switch to a subscriber slot (that is known to

 

work).

 

If the Ethernet switch works with a different subscriber slot, there may be a problem with

 

the transceiver in the original SFP slot or the configuration for the SFP slot.

 

If using a different slot does not work, try a different Ethernet switch with the original

 

slot.

 

 

3.3 Local Server

The computer behind an Ethernet switch cannot access a local server connected to the line card.

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GLC1320G-55 User’s Guide