Troubleshooting Tips
Figure 2 Cable Modem Initialization Flowchart
Power
on
1
2
3
4
5
Scan for
downstream
channel
Downstream
sync
established
Obtain
upstream
parameters
Upstream parameter acquired
Start
Ranging
Ranging and
auto adjust completed
Establish
IP
connectivety
IP
complete
Establish
time of
day
Time of day established
Establish
security
Security
established
Transfer
operational parameters
Transfer complete
Register with
the Cisco uBR7246
Registration
complete
Baseline
privacy
initialization
Baseline
privacy
initialized
Operational
6
7
8
9
10
12960
6Release 11.3(4)NA
