Alcatel-Lucent, Broadcom, JDSU take part in VDSL2 G.Vector plugfest

A group of 14 vendors recently met for a second plugfest event at the University of New Hampshire-Interoperability Lab (UNH-IOL), where they conducted interoperability testing of the G.Vector aspects of VDSL2.

Participating companies included Actiontec Electronics, Inc., ADTRAN (Nasdaq: ADTN), Alcatel-Lucent (NYSE: ALU), Broadcom, Calix (NYSE: CALX), EXFO, Ikanos, JDSU, Lantiq, NETGEAR, Pace, Realtek Semiconductor and Technicolor. Telebyte provided test and measurement equipment.

Using the Broadband Forum's G.Vector plugfest test plan, initial results will be provided to Broadband Forum members in the next few weeks.

This latest plugfest included a multi-vendor G.Vector test where many CPE and DSLAM vendors confirmed the interoperability of their implementations when operating in the same simulated cable binder.

"This was an event focused on G.Vector where we were testing multiple lines inside binder groups at the same time with the cancelation engines running," said Lincoln Lavoie, senior engineer at the UNH-IOL, in an interview with FierceTelecom. "At this event we got up to testing eight CPEs at a time with the DSLAM vendors providing eight lines to the CPE vendors to be able to test cancelation."

During the event, vendors tested retransmission parts of the standard to ensure a service provider won't lose video frames, for example. In addition, they tested how a line can shift its bit rate up and down as noise conditions change.

While earlier plugfest events tested VDSL2 and G.Vector on their own, Lavoie said that "we're now starting to combine all of these features together that had been tested all along the way as the separate VDSL2 plugfest and now with G.Vector to get to that testing everything at once approach."

UNH-IOL said it will hold a series of G.Vector interoperability events in autumn of 2013 at its Durham, N.H., facility, with others possibly taking place in 2014.

For more:
- see the release

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