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Setting a Global Adjustment Factor per DSL Subscriber Line for ANCP Agent-Reported Traffic Rates
The ANCP agent always reports both upstream and downstream rates to AAA. When a DSLAM calculates the data rate on the subscriber local loop, it ignores the additional headers on the DSL line that are associated with the overhead of the access mode (ATM or Ethernet). When the ANCP agent reports the net upstream data rate or the net downstream data rate, it includes the headers in its calculation and therefore reports a slightly higher value than that calculated by the DSLAM; this is the unadjusted data rate.
The ANCP agent also reports adjusted data rates to AAA. You can configure the agent to adjust the traffic rate to account for the header overhead by including one or more of the qos-adjust-dsl-line-type statements. Each of these statements sets an adjustment factor for a particular DSL line type that applies a percentage value to the total downstream and upstream data rates reported by the ANCP agent. That is, you configure the statements for all relevant line types, and the agent applies the appropriate adjustment when it identifies the line type for the interface. The adjustment factor applies globally for all subscribers of that DSL line type. By default, the ANCP agent applies an adjustment factor of 100 percent to all DSL lines, meaning that no adjustment is made. The ANCP agent simply passes on the DSL line rates that include the header information.
 | Note: The ANCP agent reports only unadjusted downstream data rates to CoS, and reports to CoS only when you include the qos-adjust statement at the [edit protocols ancp] hierarchy level. |
To apply a global adjustment factor for DSL subscriber lines:
- Specify the adjustment factor percentage for the desired
subscriber line.[edit protocols ancp]user@host# set qos-adjust-adsl adjustment-factoruser@host# set qos-adjust-adsl2 adjustment-factoruser@host# set qos-adjust-adsl2-plus adjustment-factoruser@host# set qos-adjust-sds1 adjustment-factoruser@host# set qos-adjust-vds1 adjustment-factoruser@host# setqos-adjust-vds2 adjustment-factor
