ZyXEL Communications Network Card gigabit ethernet line card version 4.02 Instrukcja Użytkownika Pobierz pdf (Strona 20)

Chapter 3 Troubleshooting

GLC1320G-55 User’s Guide

3.2 Data Transmission

The link is up, but data cannot be transmitted.

3.3 Local Server

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

card.

2 Ensure 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.

3 If the voltage levels are outside the allowed range, take a screen shot of the

sys

monitor status command display and contact your vendor.

Table 7 ALM LED Troubleshooting

STEPS CORRECTIVE ACTION

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.

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ZyXEL Communications Network Card gigabit ethernet line card version 4.02 Instrukcja Użytkownika Strona 20