Installation guide

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Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
OL-2238-03
Chapter 3 Configuring the Cisco Cable Interface
Setting Quality of Service (QoS) for Higher Priority Traffic
Monitoring and Maintaining QoS for Higher Priority Traffic
Use the following commands to monitor and maintain QoS for higher priority traffic.
The following example shows how the cable router (mgmt) creates a CM with a QoS profile 30:
Router(config)# cable qos profile 30 name qostest
Router(config)# cable qos profile 30 grant-int 55
Router(config)# cable qos profile 30 grant-size 100
Router(config)# cable qos profile 30 guaranteed 60000
Router(config)# cable qos profile 30 ip-prec 7
Router(config)# cable qos profile 30 max-bur 256
Router(config)# cable qos profile 30 max-down 3000
Router(config)# cable qos profile 30 max-up 6000
Router(config)# cable qos profile 30 prior 7
Router(config)# cable qos profile 30 privacy
router# show cable qos profile 30
ID Prio Max Guarantee Max Max ToS ToS Create B IP prec.
upstream upstream downstream tx mask value by priv rate
bandwidth bandwidth bandwidth burst enab enab
30 7 6000000 60000000 100000000 256 0x0 0x0 mgmt yes no
To configure a QoS profile, enter the cable qos profile global configuration command. To set default
values for profile group numbers 1 or 2, or to remove the QoS profile if no specific parameters remain,
enter the no form of this command.
cable qos profile {groupnum | grant-interval {interval}| grant-size {size} |
guaranteed-upstream {rate} | ip-precedence {value} | max-burst {rate} | max-downstream
{rate} | max-upstream {rate} | name {string} | priority {value} | privacy | ToS-overwrite
{value}}
Step 5
Router(config)# qos-profile n grant-size
Sets the size for unsolicited grants.
Step 6
Router(config)# qos-profile n grant-interval
Sets the interval for unsolicited grants.
Step 7
Router(config)# qos-profile n max-burst
Sets the maximum rate for upstream transmission bursts.
Step 8
Router(config)# qos-profile n ToS-overwrite
Sets the mask bits to overwrite the Type of Service byte.
Step 9
Router(config)# qos-profile n max-downstream
Sets the maximum downstream traffic rate.
Step 10
Router(config)# qos-profile n privacy
Enables baseline privacy.
Step 11
Router(config)# qos-profile n ip-precedence
Downstream settings are based on IP precedence.
Command Purpose
Command Purpose
Router# show cable qos profile n
Displays the configuration for the specified
profile.
Router# show interface cable x/y sid
Displays each QoS profile configured for the
specified cable interface.
Router# show interface cable x/y upstream
Displays QoS statistics for the upstream channel.