If I have a 40/5 VDSL2-8a connection, does that mean I am serviced thru a "GigE-fed DSLAM" ? If so, what exactly is a "GigE-fed DSLAM" ?
Yes.GigE-fed DSLAM is just that - a DSLAM with one or more GigE (Gigabit Ethernet) uplinks, as opposed to say T1 or DS3.Qwest ADSL2+ and VDSL2 is served out of them.
It is a DSLAM, fed via a Gigabit Ethernet fiber optic linkMany Telcos use these. AT&T's U-Verse DSLAMs are all fed with GigE links. I would assume many/most of CenturyLink's gear is also
GigE is a reference to Gigabit Ethernet. It is the speed of the links between the CL Network Equipment and the DSLAM. If you have a 40mb DSL connection, then you are most likely on a fiber-fed DSLAM.