How fast is a T3 connection?

[Birger]

Is it 1 Gbit/s?

 

[Rogue]

Nope, 43Mbps if I remember correctly.

 

[Birger]

Only 43 Mbps? Hmmm, then I was totally wrong.

But what's the name for a 1 Gbit/s connection then? Not that I are trying to get one, just curious what a 1 Gbit/s connection are called.

 

[n0cmonkey]

T-1 - 1.544 megabits per second (24 DS0 lines) .
T-3 - 43.232 megabits per second (28 T1s)
OC-3 - 155 megabits per second (100 T1s)
OC-12 - 622 megabits per second (4 OC3s)
OC-48 - 2.5 gigabits per seconds (4 OC12s)
OC-192 - 9.6 gigabits per second (4 OC48s)

 

[spidey07]

Originally posted by: n0cmonkey

T-1 - 1.544 megabits per second (24 DS0 lines) .
T-3 - 43.232 megabits per second (28 T1s)
OC-3 - 155 megabits per second (100 T1s)
OC-12 - 622 megabits per second (4 OC3s)
OC-48 - 2.5 gigabits per seconds (4 OC12s)
OC-192 - 9.6 gigabits per second (4 OC48s)

or metro services...

1000 Base-x or Giabit Ethernet. Gig ethernet comes in many flavors depending on media (copper fiber) and length.

T3 is 28 T1s. so 28*1.544 mbs. roughly 45 Mbs.

 

[knightc2]

Only 43 Mbps?

Yeah Only 43Mbs. Pretty slow...

 

[imported_Kensai]

What are the average costs for those?

 

[bgroff]

Originally posted by: n0cmonkey

T-1 - 1.544 megabits per second (24 DS0 lines) .
T-3 - 43.232 megabits per second (28 T1s)
OC-3 - 155 megabits per second (100 T1s)
OC-12 - 622 megabits per second (4 OC3s)
OC-48 - 2.5 gigabits per seconds (4 OC12s)
OC-192 - 9.6 gigabits per second (4 OC48s)

The OC-3 is actually 84 T-1s (3 T3s * 28). There's tons of overhead in OC-3 frames in order to deal with the payload mapping since the T-carrier structure isn't actually syncronous.

 

[Birger]

Thank you for your answer n0cmonkey

Perfect answer and exactly what I wanted to know.

 

[itachi]

Originally posted by: Kensai
What are the average costs for those?

monthly costs..
T1 ~ $500
T3 ~ $5k
OC3 ~ $15k
OC12 ~$20-30k
OC48 ~ $80-100k

 

[imported_Kensai]

A 1T line is 300$ CAD here.

 

[spidey07]

Originally posted by: Kensai
A 1T line is 300$ CAD here.

dang, that's expensive.

 

[ScottMac]

Some of the pricing depends on the use. Around Chicago, you can get a point-to-point T1 (within the Metro area) for $100-300. But that's a point-to-point, circuit only (no hardware) ...

If you are talking a T1 (direct or frame) to the Internet, then the price goes up, but I believe it still can be had for under $500 (with standard SLAs).

A guy I used to work with moved up to an area without DSL, Cable, or decent wireless. He got together with the neighborhood association and they all chip in for a T1 to his house, then he distributes to the neighborhood over 802.11 wireless (because he was "a network guy").

Much of the price depends on the area, the infrastructure, and the utilization.

FWIW

Scott

 

[Chode Messiah]

Don't forget OC-768 which goes at around 40+ gigabits per second (~$1mil US)