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Cisco uBR905 Router Hardware Installation Guide
OL-0598-01 (9/2000)
Chapter 4
Troubleshooting
Using the Reset Switch
g.
Click the Obtain an IP address automatically button. The IP address for the dialup connection is
assigned only when the connection is made. By default, the computer is assigned an IP address by
the Cisco uBR905 router via DHCP.
Note
When set up correctly, the Cisco uBR905 router is the default Internet connection
device. The subscriber might select the dialup adapter as an alternative connection
path.
h.
Click OK. A dialog box appears, informing you that before the change can become effective, the
computer must be rebooted.
i.
Click Yes to reboot the computer.
Using the Reset Switch
The Cisco uBR905 router contains a reset switch with three different actions:
•
A quick press (less than 10 seconds) initiates a hardware reset, similar to a power cycle or software
reload.
•
Pressing the reset switch from between 10 and 30 seconds causes the router to clear its saved RF
parameters and do a hardware reload. This reload is similar to plugging in the router for the first
time.
•
Pressing the reset switch for longer than 30 seconds causes the router to erase its system image and
download a new system image over the cable interface should the CMTS system administrator have
set certain options in the configuration file, in conjunction with field service personnel. The router
then reboots with this new image.
See Table 4-3 for additional elaboration.
Table 4-3
Reset Descriptions
Type of Reset
Press Reset Switch...
What Happens...
Warm
Less than 10 seconds
The router reboots, using the downstream frequencies
saved in the configuration file.
Cold
10 to 29 seconds
The router reboots the image in Flash memory, ignoring
the downstream frequencies saved in the configuration
file. The router initiates a downstream frequency search,
which may take a few minutes. The new frequencies are
saved in the configuration file and are used at the next
warm reset.
Cold
More than 30 seconds
The router downloads a new image from the CMTS and
reboots, storing this image in Flash memory, assuming
coordination between the CMTS system administrator
and field personnel.
