Tales from Comcast’s data cap nation: Can the meter be trusted?

Comcast itself doesn’t actually measure in customers’ homes; instead, Cable Modem Termination Systems (CMTS) in Comcast facilities count the downstream and upstream traffic for each subscriber’s cable modem. Modems are identified by their MAC addresses. Although Comcast lets customers check the CMTS measurements of their data usage in an online tool, the company doesn’t provide any way for customers to verify the CMTS count by taking measurements directly from the modem. This is important not only because the remote measurements might be inaccurate, but also because Comcast might not accurately record a customer’s MAC address. – Jon Brodkin, Ars Technica http://ift.tt/2bOTndG