user manual

Configuring Headend Broadband Access Router Features
Managing Cable Modems on the HFC Network
MC-585
Cisco IOS Multiservice Applications Configuration Guide
Verifying a QoS Profile Assignment
To verify a QoS profile assignment, perform the following steps:
Step 1 Load the Cisco uBR7200 series and wait for the cable modems to come online as indicated by the show
cable modem command.
Notice that the modems are getting their provisioned class of service as indicated by the show cable
modem and show cable qos profile commands.
Step 2 Configure any QoS profile at the CMTS with a specific index number (for example, index 1) by using
the SNMP/CLI.
Step 3 Enter the cable qos permission enforce 1 global configuration command.
Step 4 Enter the clear cable modem all reset global configuration command to force the modems to reregister
with the CMTS.
Notice that the cable modems are assigned temporarily the CMTS-defined PRE_REGISTRATION QoS
profile with index 2 until the cable modems register with the CMTS.
Step 5 Use the debug cable reg command to see that the provisioned QoS parameters of the modems are
overwritten at the CMTS during registration.
Notice that at the end of the registration, the modem gets the user-enforced QoS profile as indicated by
the show cable modem and show cable qos profile commands.
For additional information, refer to the cable qos permission enforce command reference page in the
Cisco IOS Multiservice Applications Command Reference.
Managing Cable Modems on the HFC Network
You can manage the cable modems connected to the Cisco uBR7200 series on the HFC network by
performing the optional tasks in the following sections:
• Configuring Sync Message Interval (Optional)
• Configuring Telco Return (Optional)
• Activating Cable Modem Authentication (Optional)
• Activating Cable Modem Upstream Address Verification (Optional)
• Activating Cable Modem Insertion Interval (Optional)
• Configuring the Maximum Number of Hosts Attached to a Cable Modem (Optional)
• Configuring Cable Modem Registration Timeout (Optional)
• Clearing and Resetting Cable Modems (Optional)
• Clearing Cable Modem Counters (Optional)
• Using Ping DOCSIS (Optional)
Note The default values for the commands used in these configuration steps are adequate in most
cases to configure the Cisco uBR7200 series.