Cisco MC16S Manual de usuario descargar pdf (Pagina 21)

Configuring Spectrum Management on an Upstream Cable Interface

Cisco uBR7200 Series MC16S Cable Modem Card Spectrum Management 21

Example

See the following example to conﬁgure spectrum group 1 with an upstream frequency of

6,500,000 Hz and a default power level of 0 dBmV:

Router(config)# cable spectrum-group 1 frequency 6500000

See the following example to add the upstream frequency 7,000,000 Hz to the list of valid

frequencies with a default power level of 0 dBmV for spectrum group 1:

Router(config)# cable spectrum-group 1 frequency 7000000

See the following example to conﬁgure spectrum group 2 with an upstream frequency 7,500,000 Hz

and change the power level to 5 dBmV:

Router(config)# cable spectrum-group 2 frequency 7500000 5

See the following example to conﬁgure spectrum group 3 with an upstream band of 12,000,000 to

18,000,000 Hz and default power level of 0 dBmV:

Router(config)# cable spectrum-group 3 band 12000000 18000000

See the following example to add the upstream band 20,000,000 to 24,000,000 Hz to the list of valid

bands with a change in the power level of 13 dBmV for spectrum group 3:

Router(config)# cable spectrum-group 3 band 20000000 24000000 13

See the following example to conﬁgure a continuous band between 5,000,004 and 40,000,000 Hz

for scheduled spectrum group 4 with a default power level of 0 dBmV. The spectrum group will be

available to the spectrum group starting at 12:00 p.m. local time each Monday:

Router(config)# cable spectrum-group 4 time Monday 12:00:00 band 5000004 40000000

See the following example to add the upstream frequency 9,500,000 Hz to the list of valid

frequencies and change the nominal power level to 5 dBmV. The spectrum manager adjusts

frequencies and power levels on this group at 2:00 a.m. local time each day:

Router(config)# cable spectrum-group 3 time 02:00:00 frequency 9500000 5

See the following example to conﬁgure the minimum period before which a frequency hop can occur

in seconds:

Router(config)# cable spectrum-group 3 hop period 800

See the following example to conﬁgure the threshold value (expressed as a percentage) of the

number of “ofﬂine” modems identiﬁed before the Cisco uBR7200 series initiates an automatic

frequency hop:

Router(config)# cable spectrum-group 3 hop threshold 40

See the following example to conﬁgure a particular spectrum group as a shared RF spectrum group.

Specifying a given spectrum group as “shared” tells the Cisco uBR7200 series that you want to be

sure that upstream frequencies assigned to upstream interfaces are not assigned to additional

upstream interfaces:

Router(config)# cable spectrum-group 3 shared

See the following example to remove a speciﬁed spectrum group from your conﬁguration:

Router(config)# no cable spectrum-group 3

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 33 34

Sin comentarios

Cisco MC16S Manual de usuario Pagina 21