Installation guide

5-9
Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
OL-2238-03
Chapter 5 Troubleshooting the System
Managing Cable Modems on the HFC Network
Note The clear cable modem reset command is useful if an SNMP manager is not available, or if the cable
modem is unable to obtain an IP address or respond to SNMP messages.
Clearing Cable Modem Counters
To clear the counters for the cable modem(s) in the station maintenance list, use one of the following
commands in cable interface configuration mode.
Verifying Clear Cable Modem Counters
To determine if the counters in the station maintenance list are cleared, enter one of the following
commands. The station maintenance list counter is 0.
Configuring Traffic Shaping
Configuring Downstream Rate Limiting and Shaping
To configure downstream rate limiting or shape downstream traffic, use the following command in cable
interface configuration mode.
You can use this command in the following ways:
Command Purpose
CMTS01(config-if)# clear cable modem
mac-addr counters
CMTS01(config-if)# clear cable modem
ip-addr counters
CMTS01(config-if)# clear cable modem all
counters
Clear the counters in the station maintenance list
for the CM with a specific MAC address.
Clear the counters in the station maintenance list
for the CM with a specific IP address.
Clear the counters in the station maintenance list
for all CMs.
Command Purpose
show cable modem ip-address
Displays the status of a cable modem identified by its IP
address.
show cable modem mac-address
Displays the status of a cable modem identified by its MAC
address.
show cable modem interface-address
Displays the status of all cable modems on a particular
upstream.
Command Purpose
CMTS01(config-if)# [no] cable downstream
rate-limit token-bucket [shaping]
weighted-discard [expwt n]
Enables or disables rate limiting and traffic shaping
on the downstream of a cable interface.