ZyXEL Communications SLC1224, Руководство пользователя

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SLC1224 User’s Guide
Chapter 10 Troubleshooting 123
10.5 Data Rate
The SYNC-rate is not the same as the configured rate.
10.6 Password
If you forget your password, you will need to use the console port to reload the factory-default
configuration
file (see Section 10.7.1 on page 123 ).
10.7 The Line Card is not Manageable
The line card always uses the default configuration. Any changes you did to the line card are
stored on the MSC. By default, the MSC is allowed to manage every line card. Use the
lcman
show
command on the MSC to see a line card’s connection status. If you still cannot manage
the line card from the MSC, the line card’s configuration file may be damaged or the firmware
may be old, you may need to restore the default configuration file or upload new firmware
using the line card’s console port.
It requires you to disconnect the management switch card, thus disconnecting all of the
Integrated Ethernet Switch’s subscribers.
Note: This procedure is for emergency situations only.
Using it will disconnect all of the Integrated Ethernet Switch’s subscribers.
10.7.1 Uploading the Default Configuration File via Boot Commands
Obtain the default configuration file, unzip it and save it in a folder. Use a console cable to
connect a computer with terminal emulation software to the line card’s console port. Pull out
the line card and push it back in, you will see the initial screen. When you see the message
Press any key to enter Debug Mode within 3 seconds
press any key to enter
debug mode.
To upload the configuration file, do the following:
1 Type
atlc
after the
Enter Debug Mode
message.
Table 45 SYNC-rate Troubleshooting
STEPS CORRECTIVE ACTION
1 Connect the DSL modem or router directly to the DSL port using a different telephone wire.
2 If the rates match, the quality of the telephone wiring that connects the subscriber to the
DSL port may be limiting the speed to a certain rate.
If they do not match when a good wire is used, contact the distributor.