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Configuring the G10 CMTS
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Configuring Upstream Channel Parameters
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Table 7: Upstream Channel Parameter Ranges
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Juniper Networks G10 CMTS Getting Started
The procedure in this section specifies various parameters for upstream channel 0 of
slot 1 / interface 0. A default modulation profile for channel 0 will be used. The available
upstream channels on a DOCSIS Module are channels 0–7 or 0–15 (depending on the
DOCSIS Module model), and are assigned to the four upstream ports (0–3) on the HFC
Connector Module by default as defined in Table 4 on page 41. Table 7 provides the valid
ranges of all parameters specified in this section.
Parameter
slot
interface
channel
port
channel width
frequency
power-level
data-backoff
range-backoff
modulation-profile
minislot-size
1.
Specify a channel width of 200000 Hz for upstream channel 0:
G10$root(config-if-c1/0)# cable upstream 0 channel-width 200000↵
2.
Specify a frequency of 5000000 Hz for upstream channel 0:
G10$root(config-if-c1/0)# cable upstream 0 frequency 5000000↵
3.
Specify a power level of 0 dBmV for upstream channel 0:
G10$root(config-if-c1/0)# cable upstream 0 power-level 0↵
4.
Specify start and stop data backoff values of 2 and 6, respectively, for upstream channel
0:
G10$root(config-if-c1/0)# cable upstream 0 data-backoff 2 6↵
5.
Specify start and stop range backoff values of 3 and 7, respectively, for upstream
channel 0:
G10$root(config-if-c1/0)# cable upstream 0 range-backoff 3 7↵
6.
Specify a minislot size of 8 for upstream channel 0:
G10$root(config-if-c1/0)# cable upstream 0 minislot-size 8↵
Range
1–4, 10–13
0–3
0–7 or 0–15 (depending on the DOCSIS Module model)
0–3
200000–3200000 Hz
DOCSIS: 5000000 to 42000000
EuroDOCSIS: 5000000 to 65000000
-10 to +25 dBmV
0–16
0–16
1–256
2, 4, 8, 16, 32, 64, 128
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