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cable downstream rate-limit
Decreasing the max-delay value increases how often the packets in the entire queue are processed, while
decreasing the granularity value increases the accuracy of the shaping mechanism. Decreasing these
values, however, could result in a possible increase in CPU processor usage. In most circumstances, this
increase in processor usage is negligible, but it should be monitored whenever fine-tuning the max-delay
or granularity values.
For more information about the DOCSIS 1.1 rate-limiting specifications, see section C.2.2.5.2,
Tip
Maximum Sustained Traffic Rate, in the DOCSIS 1.1 specification.
Examples
The following example shows how to apply the token-bucket filter algorithm on a Cisco uBR7200 series
router running Cisco IOS Release 12.1 EC:
Router(config)# interface cable 6/0
Router(config-if)# cable downstream rate-limit token-bucket
Router(config-if)#
The following example shows how to apply the token-bucket filter algorithm on a Cisco uBR10012
router running Cisco IOS Release 12.2 BC:
Router(config)# interface cable 5/1/0
Router(config-if)# cable downstream rate-limit token-bucket shaping
Router(config-if)#
The following example shows how to use token-bucket shaping with a max-delay of 256 milliseconds
on a Cisco uBR7100 series router:
Router(config)# interface cable 1/0
Router(config-if)# cable downstream rate-limit token-bucket shaping max-delay 256
Router(config-if)#
Related Commands
Command
cable service class
cable upstream rate-
limit
Cisco Broadband Cable Command Reference Guide
2-60
Description
Sets the parameters for a DOCSIS 1.1 cable service class.
Sets DOCSIS rate limiting for an upstream port on a cable interface line
card.
Chapter 2
Cisco CMTS Configuration Commands
OL-1581-08
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