Enforcing The Downstream Rate Limit; Enabling The Downstream Port - Motorola BSR 2000 Configuration And Management Manual

Release 1.0

Enforcing the Downstream Rate Limit

Use the cable downstream rate-limit command to enable the downstream data
transmission rate-limit to CMs on the HFC network. Once the downstream data
transmission rate-limit function is enabled, data sent from the cable interface to the
CMs is rate-limited according to each CM configuration. Packets are buffered by the
CMTS, when the data exceeds the permitted bandwidth of the CM, and queued for
transmission once downstream bandwidth for the CM becomes available.
Follow the steps in this section to enable the downstream rate-limit for CMs:
1. Edit the CM configuration file to set the downstream data rate limit.
2. Use the cable downstream rate-limit command in Interface Configuration mode
3. Use the show running-config command in Privileged EXEC mode to verify that
4. Use the show cable qos svc-flow statistics command to display the service flow

Enabling the Downstream Port

The downstream port is in an administrative shut-down state by default and must be
enabled to function.
Follow these steps to enable the downstream port:
1. Use the no cable downstream shutdown command in Interface Configuration
526360-001-00 Rev. B
to enable the rate-limiting function:
MOT (config-if)# cable downstream rate-limit
Use the no cable downstream rate-limit command if you need to disable the
downstream rate-limiting function.
downstream rate-limiting is enabled or disabled on the cable interface:
MOT # show running-config
statistics for all service flow ID (SFID), a specific cable interface, or a specific
service flow:
MOT # show cable qos svc-flow statistics [<X/Y>] [<1-4292967295>]
where:
X is 0.
Y is the port number.
1-4292967295 is the SFID number.
mode to enable the downstream port:
MGBI
Configuring the CMTS
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