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chris1212

@rr.com

Full T1 or Fractional T1 for Gaming

which would be the best option for console gaming? i hear that gaming doesn't use a lotta bandwidth, but yet i hear how important it is to have a fast connection...very confused. feedback is much appreciated



tschmidt
Premium,MVM
join:2000-11-12
Milford, NH
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Reviews:
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Speed and latency are different animals.

I like to use the analogy of a Fed X truck filled with DVDs. It takes a long time to get from Point A to B but once it gets there it delivers a huge amount of data, high latency high throughput.

The travel time is latency, how long it takes to get from one place to another.

Speed it how much data can be delivered over a certain period of time.

T1 offers 1.5 Mbps symmetrical throughput. Being a business class service ISP should be lightly loaded so you should not run into congestion slow downs. T1 used to require 2-pairs (one in each direction) this configuration has very low latency because the T1 modulation scheme is pretty simple. Most modern T1 use a single pair and specialize signal processing techniques much like ADSL. That adds some degree of latency.

Latency is also affected by upload and download speed. The faster the speed the quicker a given amount of data can be transmitted. So going to fractional T1 will not only decrease throughput but increase latency.

By modern standards T1 is pretty slow. Most residential DSL and almost all Cable is much faster. So it all comes down to how much you can afford.

/tom



chris1212

@rr.com

thanks for the response. i pretty much understand what latency and bandwidth is, but for onling gaming, latency is a lot more important than bandwidth (thus why i'm looking for a T1 connection). here's my question, let's say a game uses 50kbps, would me having a 15/15mbps connection over a 256/256kbps connection make a difference? or would that be a waste of bandwidth since the game uses 50kbps?

it just dawned on me...would my connection speed have anything to do with my actual bandwidth usage? i just thought about what you said, my SPEEDS would impact how FAST my information goes out, not how much data i'm using lol is that correct?



tschmidt
Premium,MVM
join:2000-11-12
Milford, NH
kudos:9
Reviews:
·G4 Communications
·Fairpoint Commun..
·Hollis Hosting

said by chris1212 :

let's say a game uses 50kbps, would me having a 15/15mbps connection over a 256/256kbps connection make a difference? or would that be a waste of bandwidth since the game uses 50kbps?

All else being equal 15/15 would be faster since it takes less time to send a packet of data. Keep in mind T1 is only 1.5 Mbps not 15.

Lets put some numbers on those speeds. Maximum packet length is 1500 bytes which is 12,000 bits (1-byte = 8-bits)
At 256 kbps it takes 46.8 ms to send packet
At 1.5 Mbps it takes 8 ms
At 15 Mbps it takes .8 ms

More then likely gaming synchronizing packets are somewhat shorter so these numbers overstate the negative effect of low speed.

said by chris1212 :

would my connection speed have anything to do with my actual bandwidth usage? i just thought about what you said, my SPEEDS would impact how FAST my information goes out, not how much data i'm using lol is that correct?

Bandwidth is the amount of data sent over a connection. Speed affects how long it takes not how much you send.

/tom


chris1212

@rr.com

thank you very much for your help. i have one last question..

let's say if i ran a ping test a on a t1 line and averaged a 3-5ms on a nearby server. what' a decent estimate of what i might get on a server located across country ie NY-CA?

thanks in advance



tschmidt
Premium,MVM
join:2000-11-12
Milford, NH
kudos:9
Reviews:
·G4 Communications
·Fairpoint Commun..
·Hollis Hosting

Speed of light in a vacuum is 186,000 miles per second. Internet backbone is fiber, light travels slower in fiber about 70% the speed in vacuum or about 130,000 miles per second.

Ping measures round trip time. New York city to LA is about 2500 air line miles so round trip is 5,000 miles. Actual fiber optic cable length is significantly longer so figure cable length is probably closer to 6,000 miles.

You do the math.

That is the best possible time based solely on transmission flight time, in the real word other factors will typically add another 25-50 ms.

Still pretty fast when you think about what is actually happening.

/tom