Configuring Upstream Frequencies - Cisco uBR10012 Software Configuration Manual

Chapter 2 Configuring the Cable Modem Termination System for the First Time
Configuring interface cable 5/0/0:
Is this interface in use? [yes]:
Configure this interface? [yes]:
IP address for this interface [19.2.22.5]:
Number of bits in subnet field [8]:
Class A network is 19.0.0.0, 8 subnet bits; mask is /16
Configuring interface cable 1/1:
Is this interface in use? [yes]:
Configure this interface? [yes]:
IP address for this interface [19.2.22.6]:
Number of bits in subnet field [8]:
Class A network is 19.0.0.0, 8 subnet bits; mask is /16
The configuration program displays the newly created command interface script:
The following command script was created:
hostname router
enable secret 5 $1$f0fc$A38P/KN/9yD3sEKSt6hKQ/
enable password betty
line vty 0 4
password wilma
snmp-server community public
!
ip routing
!
interface cable 5/0/0
ip address 19.2.22.5 255.255.0.0
router igrp 15
network 19.0.0.0
!
end
Step 10 When asked if you want to use this configuration, enter yes or press Return.
Use this configuration? [yes/no]: yes
Step 11 Save your settings to NVRAM. (Refer to the
Facility" section on page
You must always manually save the configuration settings to NVRAM whenever they are modified.
Note

Configuring Upstream Frequencies

Upstream parameters must be configured manually. After the Setup facility is run, upstream ports have
a default state of "shutdown." You have two methods to configure upstream channel frequencies:
•
•
The cable interface card receiver accepts time-division multiplexed burst transmissions from
cable interfaces (or CMs in set-top boxes), which are DOCSIS-based. The upstream port becomes "up"
when it is assigned an upstream frequency and is configured to be administratively up.
The upstream port is frequency-agile. The frequency can change while the interface is up and carrying
traffic, if you define spectrum groups per the example provided.
OL-1520-05
2-14.)
Configure a fixed frequency between 5 to 42 MHz for North American channel plans, and enable
the upstream port.
Create a global spectrum group, assign the interface to it, and enable the upstream port.
Configuring the Cisco uBR10012 Router Using the Setup Facility
"Configuring the Cable Interface with the Extended Setup
Cisco uBR10012 Universal Broadband Router Software Configuration Guide
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