Chapter 3 VLC Troubleshooting
VLC1324G User’s Guide
32
3.3 VDSL2 Data Transmission
The VDSL2 link is up, but data cannot be transmitted.
3.4 Local Server
The computer behind a VDSL2 modem or router cannot access a local server connected to the
line card.
3.5 Data Rate
The SYNC-rate is not the same as the configured rate.
Table 11
VDSL2 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 VDSL2 port’s data rates are set high enough.
2
Check the VLAN configuration.
3
Ping the MSC from the computer behind the VDSL2 modem or router.
If you cannot ping, connect a VDSL2 modem to a VDSL2 port (that is known to work).
If the VDSL2 modem or router works with a different VDSL2 port, there may be a problem
with the original port. Contact the distributor.
If using a different port does not work, try a different VDSL2 modem or router with the
original port.
Table 12
Local Server Troubleshooting
STEPS
CORRECTIVE ACTION
1
to make sure that the subscriber is able to transmit to the
line card.
2
Make sure the computer behind the DSL device has the correct gateway IP address
configured.
3
Check the VLAN configuration.
4
Check the cable and connections between the line card and the local server.
5
Try to access another local server.
If data can be transmitted to a different local server, the local server that could not be
accessed may have a problem.
Table 13
SYNC-rate Troubleshooting
STEPS
CORRECTIVE ACTION
1
Connect the VDSL2 modem or router directly to the VDSL2 port using a different telephone
wire.
2
If the rates match, the quality of the telephone wiring that connects the subscriber to the
VDSL2 port may be limiting the speed to a certain rate.
If they do not match when a good wire is used, contact the distributor.
Summary of Contents for Cable Modem
Page 1: ...www zyxel com VLC1324G VDSL2 Line Card User s Guide Version 3 90 5 2008 Edition 1...
Page 2: ......
Page 6: ...Safety Warnings VLC1324G User s Guide 6...
Page 10: ...List of Figures VLC1324G User s Guide 10...
Page 12: ...List of Tables VLC1324G User s Guide 12...
Page 14: ...14...
Page 22: ...Chapter 1 VLC Overview VLC1324G User s Guide 22...
Page 30: ...Chapter 2 VLC Specifications VLC1324G User s Guide 30...
Page 36: ...Chapter 3 VLC Troubleshooting VLC1324G User s Guide 36...
Page 37: ...37 PART II Appendices and Index Legal Information 39 Customer Support 43 Index 49...
Page 38: ...38...
Page 42: ...Appendix A Legal Information VLC1324G User s Guide 42...
Page 51: ...Index VLC1324G User s Guide 51 wire gauge 28 X XMODEM upload 33 34...
Page 52: ...Index VLC1324G User s Guide 52...