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Most users pull far more data than they push, so it's a simple reaction to the market -- with technologies like DOCSIS you have a set number of channels and you
by osweiller 11y ago
Most users pull far more data than they push, so it's a simple reaction to the market -- with technologies like DOCSIS you have a set number of channels and you assign them to either downstream or upstream bandwidth. More users benefit from a fatter downstream pipe. ADSL has the same sort of bandwidth allocation. Having a symmetrical connection generally means limiting the downstream connection.
- cm2187 11y agoYes but I don't expect this sort of performance for cable or DSL. We are talking about Optic Fiber really.
- osweiller 11y agoMy cable modem pulls 120Mbps down, pushes 10Mbps. 24/7. DOCSIS 3.1 promises up to 10Gbps down, 1Gbps up (again, because it biases the bandwidth to down). It's a signal on a medium. And when we talk about fiber optics, 9 times out of 10 it isn't really fiber optics. The vast majority of BT "fiber optic" installs are a copper twisted pair, with exactly the issue I mentioned. But their junction box, just like cable internet applications, has fiber optics going to it, for what's that worth. For a real pure fiber optic connection, which is rare, the service usually is symmetric because that compromise didn't need to be made.
- cm2187 11y agoYes but by Optic Fibre I meant FTTP, not FTTC. FTTC is nothing more than a thick layer of lipstick on the DSL pig.
- gdrulia 11y agoIndeed, I have recently got a fully fiber optic connection up to a flat and it is symmetric 300/300Mbps download/upload. As I was looking the plans, there wasn't even an option to go with non-symmetric connection.