ZyXEL Communications SLC1224, Руководство пользователя

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SLC1224 User’s Guide
122 Chapter 10 Troubleshooting
10.3 DSL Data Transmission
The DSL link is up, but data cannot be transmitted.
10.4 Local Server
The computer behind a DSL modem or router cannot access a local server connected to the
line card.
Table 43 DSL Data Transmission Troubleshooting
STEPS CORRECTIVE ACTION
1 Check the line card’s port isolation settings.
Check to see that the VPI/VCI and multiplexing mode (LLC/VC) settings in the subscriber’s
DSL modem or router match those of the DSL port.
Also, make sure that the subscriber’s DSL modem is using RFC 1483 encapsulation. If the
subscriber is using a router (with routing mode), make sure it is using ENET ENCAP.
If the subscriber is having problems with video or other high-bandwidth services, make sure
the line card’s DSL port’s data rates are set high enough.
2 Check the VLAN configuration.
3 Ping the line card from the computer behind the DSL modem or router.
If you cannot ping, connect a DSL modem to a DSL port (that is known to work).
If the DSL modem or router works with a different DSL port, there may be a problem with
the original port. Contact the distributor.
If using a different port does not work, try a different DSL modem or router with the original
port.
Table 44 Local Server Troubleshooting
STEPS CORRECTIVE ACTION
1 Refer to Section 10.3 on page 122 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 (refer to the MSC User’s Guide).
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.