Category Archives: vdsl

Why we need to migrate to IPv6 sooner

The test result above was done using DOCSIS 3.0 modem, XFinity Blast and thru 5 MHz Wi-Fi (802.11n).See how IPv6 improves the download speed more than 3 times of IPv4 in download test? I think of the reason is that … Continue reading

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AT&T U-Verse vs. Comcast Xfinity

Technology used U-Verse: FTTN (Fiber-to-the Node) and VDSLComcast: DOCSIS (DataOver Cable Service Interface Specification) and HFC Diagram CMTS = Cable Modem Termination System  (usually at curbside of a neighborhood serving house) VRAD = Video-Ready Access Device (usually at curbside of … Continue reading

Posted in at&t, broadband, cmts, comcast, docsis, fttn, hfc,, uverse, vdsl, xfinity | Leave a comment