Quote:
Originally Posted by TraxData2
The backcore network is docsis3 though..(the main core) then as far as im aware its FTTN then ethernet (cat5?/6?) through the apartments.
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The backbone isnt DOCSIS 3 or DOCSIS of any kind. DOCSIS is exclusively an HFC standard and isn't run over fibre networks. If the system is FTTBuilding what's going down the fibre will be nothing more interesting than a variation of Ethernet going into a switch then Fast Ethernet down the UTP to each apartment.
BT's Ebbsfleet trial is
not DOCSIS 3, its using GPON. Gigabit Passive Optical Network, which carries a variation of SDH/PoS. STM-16 downstream, STM-4 upstream to each PON splitter. Tad pointless throwing DOCSIS down there.
DOCSIS is an
access network technology, not a core network technology and is used exclusively for delivery of bandwidth down HFC networks as they are uniquely constrained by having to deliver their bandwidth in 6/8MHz slices. It's completely pointless using it for FTTK/P networks, why cripple an unchannelised network with GHz of bandwidth by forcing it to use bonded 6/8MHz channels? You can send 2.4Gbit/s down GPON to a single customer, rather pointless sharing 200Mbit between them using DOCSIS.
The tech that VM will use will be EuroDOCSIS 3 Silver certified. The original trials in Ashford along with the equipment until certification was Pre-DOCSIS 3, which btw means that it hadn't passed the certification testing. I believe that the modems will be firmware upgradeable to EuroDOCSIS 3 Gold, as would the CMTS.