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Report: Comcast usage meter is accurate

Wed, 12/02/2009 - 7:50am
Brian Santo

One of the biggest objections consumer advocates have against usage metering is that it may be inaccurate. Score one for cable, then. In Comcast systems using the Cisco 10000 CMTS, metering accuracy is good within 0.5 percent, according to NetForecast.

NetForecast Instrumentation

NetForecast said it performed “an extensive battery of tests and studies” of Comcast’s metering system over the course of seven months and determined that Comcast’s gauge worked better than Comcast wanted; the MSO’s goal for its metering system was accuracy to +/- 1 percent.

The CMTS meters the data flow, NetForecast explains, and reports usage levels for every cable modem in Internet Protocol Detail Records (IPDRs). IPDRs are gathered from the CMTS by an active resource manager (ARM) system, in Comcast’s case supplied by Active Broadband Networks. Ultimately, subscribers can get access to that data so they can monitor their own data usage.

When there are errors, NetForecast reports, they’re more likely to be in the customer’s favor.

The full report can currently be accessed from the “What’s News” section on NetForecast’s Web site.

More Broadband Direct 12/02/09:
•  Report: Comcast usage meter is accurate
•  Comcast seeks FCC OK for Cimco buy
•  Shop 'til you drop: CMC, icueTV team up on t-commerce
•  FCC requests input on PSTN switch to IP
•  Genachowski calls for spectrum, USF reform
•  Cisco nears completion of Tandberg takeover
•  RGB, OpenTV demo ad overlay at CableLabs interop
•  AT&T pulls suit against Verizon ads
•  Basic cable rate hikes seen nationwide
•  Canadian ad battles intensify
•  Broadband Briefs for 12/02/09

 

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