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« Comcast Tests 100-Gig Optical Links  
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tmc8080

join:2004-04-24
Floral Park, NY

Bragging rights?

What does this really do for the end subscriber? It's nothing more than crotch-grabbing style bragging rights.. so say, "We can send 100 gigabits of data thousands of miles.. but can't get more than a few megabits to the "last mile" so I'm really unimpressed. Until that translated into DEPLOYED 100 megabit symmetrical connections for anyone who wants one.. DIRT CHEAP.. STFU.


Matt
Take me down to the paradise city
Premium
join:2003-07-20
Jamestown, NC
·North State Commun..

said by tmc8080 See Profile :

What does this really do for the end subscriber? It's nothing more than crotch-grabbing style bragging rights.. so say, "We can send 100 gigabits of data thousands of miles.. but can't get more than a few megabits to the "last mile" so I'm really unimpressed. Until that translated into DEPLOYED 100 megabit symmetrical connections for anyone who wants one.. DIRT CHEAP.. STFU.
And where do you think all that 100Mbps symmetrical traffic has to go? Across backbone links like this one.

The backbone has to be in place before you can deliver the speeds to the end user.

smcallah

join:2004-08-05
Home

said by Matt See Profile :

And where do you think all that 100Mbps symmetrical traffic has to go? Across backbone links like this one.

The backbone has to be in place before you can deliver the speeds to the end user.
Oh, you mean there's not a magical 100mbit connection direct from my house to any site on the Internet?


Matt
Take me down to the paradise city
Premium
join:2003-07-20
Jamestown, NC
·North State Commun..

said by smcallah See Profile :

said by Matt See Profile :

And where do you think all that 100Mbps symmetrical traffic has to go? Across backbone links like this one.

The backbone has to be in place before you can deliver the speeds to the end user.
Oh, you mean there's not a magical 100mbit connection direct from my house to any site on the Internet?
Well, you might be special.

tmc8080

join:2004-04-24
Floral Park, NY

reply to Matt
said by Matt See Profile :

And where do you think all that 100Mbps symmetrical traffic has to go? Across backbone links like this one.

The backbone has to be in place before you can deliver the speeds to the end user.
Why test along the eastern U.S.? That's not where the bandwidth is needed.. you need bandwidth criss-crossing the east-west and north-south corridors in the other two time zones further west. I never see my full 20/5 cap across the U.S. which is why those links need to be upgraded. Some backbone providers still have cross city & cross country fiber links as low as 10megabits asymmetrical! There are dozens of Pedabits of available infrastructure along the eastern corridor, compared with a few thousand Gigabits under peak traffic out west. This is another reason why Comcast & AT&T's plans for next generation broadband are so luke-warm.. the infrastructure would choke to death if people actually tried to use those speeds. There needs to be a window of about 5 years to get some of these links upgraded to the best fiber routing equipment made today. Of course we don't see flashy press releases about efforts to retool state to state backbone links such as Ohio-Texas, Pennsylvania to Nevada to California, etc.. that is slow, slogging hard work..


l3fiber

@comcast.net

said by tmc8080 See Profile :

Why test along the eastern U.S.? That's not where the bandwidth is needed.. you need bandwidth criss-crossing the east-west and north-south corridors in the other two time zones further west.
A physical test like this doesn't matter where it is. It is a trial.
said by tmc8080 See Profile :

I never see my full 20/5 cap across the U.S. which is why those links need to be upgraded. Some backbone providers still have cross city & cross country fiber links as low as 10megabits asymmetrical! There are dozens of Pedabits of available infrastructure along the eastern corridor, compared with a few thousand Gigabits under peak traffic out west. This is another reason why Comcast & AT&T's plans for next generation broadband are so luke-warm..
Cross country bandwidth is upgraded at the same pace of coastal bandwidth. The reason you don't see higher speeds at distance is because of 1) speed of light latency, 2) maximum packet size in applications, systems and networks and 3) the way TCP works.

It has little to do with cross country bandwidth. As broadband speed increases the next issues to understand are the above factors. People complain about cross country and international latency, but speed of light is a little hard to increase.
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