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iansltx
join:2007-02-19
Golden, CO
kudos:2 | reply to elefante72
Re: pathetic Google Fiber is PON. My bet is that, these days anyway, PON if done a certain way is still cheaper than Active Ethernet. The difference here is that Comcast is deploying surgically, thich doesn't make sense for PON. | |
 somms
join:2003-07-28
Salt Lake City, UT | said by iansltx:Google Fiber is PON. My bet is that, these days anyway, PON if done a certain way is still cheaper than Active Ethernet. The difference here is that Comcast is deploying surgically, thich doesn't make sense for PON.
»en.wikinoticia.com/Technology/in···s-161-km
We follow with interest every step you take Google's new experimental fiber network that is unfolding in Kansas City. On this occasion, one of its leaders explains how each household connected individually to the Google Fiber Huts, which unlike GPON networks such as Telefonica can offer 1 Gbps symmetrical.
John Toccalino, project manager, explains that being installed in various parts of the city a few huts or nodes called Google Fiber Huts. Inside house the OLT equipment that connect the pairs of fiber, which then hung from utility poles, reach every home. For its explanation, we understand that Google is not using a GPON network like the one in Spain is installing Telefónica.
Google does reach each individual fiber from Google Hut Fiber to the home. The main advantage is that each line is independent and can use their full capacity for a single user. The disadvantage is that a deployment of this type is more expensive than the displays in a tree, as used by Telefonica, in which each fiber coming from the OLT is divided into several stages into sub-segments by splitters, so that all Users are both the same optical signal, but each uses it only for the fraction of time allocated to it.
With this architecture, the network of Google not only provides 1 Gbps to each user, but this is symmetrical, which would be impossible in a GPON deployment, having to share all the users upload rate up to 1, 25 Gbps. | | |
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iansltx
join:2007-02-19
Golden, CO
kudos:2 Reviews:
 ·Verizon Online DSL
 ·RoadRunner Cable
·Comcast
| EPB uses GPON and offers gigabit to its highest-end subscribers.
Google may not be using GPON. They may be using X-GPON for their rollout, which has a bit more upstream capacity (2.466 Gbps).
They are using PON though, according to a screenshot or two taken at one of GFiber's active locations. | |
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