Configuring Headend Broadband Access Router Features
Managing Cable Modems on the HFC Network
Troubleshooting Tips
To troubleshoot the configuration, make sure that you entered the correct slot and port numbers when you typed the command.
Configuring the Maximum Number of Hosts Attached to a Cable Modem
To specify the maximum number of hosts that can be attached to a subscriber cable modem, use the following command in cable interface configuration mode:
Command | Purpose |
|
|
Specifies the maximum number of hosts that can be attached to | |
| a cable modem on this interface. Valid range is from 0 to 255 |
| hosts. Default = 0. |
|
|
Verifying the Maximum Number of Hosts
To verify the maximum number of hosts that can be attached to a cable modem on a particular interface, enter the more
CMTS01# more
Building configuration...
Current configuration:
!
interface Cable6/0
ip address 1.1.1.1 255.255.255.0 no keepalive
cable
cable downstream | annex B |
cable downstream | modulation 64qam |
cable downstream | |
cable downstream | |
cable upstream 0 | frequency 15008000 |
cable upstream 0 | fec |
cable upstream 0 | scrambler |
no cable upstream 0 shutdown
Troubleshooting Tips
To troubleshoot the configuration, make sure that you entered the correct slot and port numbers when you typed the command.
Configuring Cable Modem Registration Timeout
By default, registered cable modems that have no upstream activity for three minutes are timed out and disconnected from the Cisco uBR7200 series. This timeout interval can be decreased to two minutes or increased to 60 minutes.
To specify the registration timeout interval for cable modems connected to the Cisco uBR7200 series, use the following command in cable interface configuration mode:
Cisco IOS Multiservice Applications Configuration Guide
