New T1 line(s) went in today!!

Yaayyy !!
Does it seem like things are a little faster?


Bill

Absolutely, at least on my dial-up.

Roger

Bill,
Yes things are much faster. Very noticable. I am on a cable modem.

I'll third that!!!

I'm on dsl and ECN's pages snap again.

Yes, although it still takes a second or so for the page to display. More likely due to the time it takes routing data across the Atlantic and for explorer to figure out what it means.

[This message has been edited by C-H (edited 10-07-2003).]

Definitely speeding along from this side of the Pond. I'm on 56k dial-up, getting most ECN pages completely back within 3 to 4 secs.

As an aside: T1, T2 and so on are some type of American designation. What do they mean?

In Sweden, there is no special terminology for capacity. Lines are simply rated in Mbit/s. E.g a DSL line to your home will get you .25-10Mb/s, whereas university lines are 1-2.5 GB/s. (The national network is 10 GB/s)

These are rough numbers.

Commercial long distance lines:

US:
DS0 ~ 56/64kbit/s
T1/DS1 ~ 1.54mbit/s
T2 = not used anymore/rarely ever
T3/DS3 ~ 45mbit/s
OC1 ~ 51.5mbit/s
OC3 ~ 155mbit/s
OC12 ~ 620mbit/s
OC48 ~ 2.5gbit/s
OC192 ~ 10gbit/s

EU+World:
E1 ~ 2.0mbit/s
E3 ~ 32mbit/s
Same OC lines.

Home use:
DSL can be symmetrical or asymmetrical
sym is usually small business class, running from 192kbit-2.0kbit/s, asymmetrical is normally residential with anywhere from 256kbit-3mbit downloads, and 128kbit-1.5mbit uploads.
There are other types like HDSL (phone companies use this to run T1 lines), IDSL (144kbit symmetrical for long distances), and VDSL (very high speed, not common in the US, but around in some places worldwide).

Cable can run between 10mbit download to 2mbit upload, and will depend on provider, network, and service plan.

LAN:

Token ring (being phased out) = 4 or 16mbit/s per ring
Ethernet 10mbit/s, runs on cat3 wiring
Ethernet 100mbit/s, runs on cat5 wiring
Ethernet 1000mbit/s, runs on cat5e + wiring (highly reccomended cat6).
All ethernet has ~100meter length limit over copper, and does come in fiber forms (multimode, singlemode) that can range up to 20+kilometers !.

Ditto--much improvement. I was just noticing last week that things seemed to be slowing down.

Xanathar:
Welcome aboard, and thanks for the great info!

Looks good here at home using the CATV connection ... and also at work via a LAN

One comment about DSL varieties... SDSL/HDSL is a symmetrical business-grade/must-run product, and priced accordingly. ADSL riding on dialtone is typically a "best effort" product—lower priced but with variable performance and lower repair priority.

Xanathar's listed "OC" rates are for fiber..."optical carrier(?)" [Hey everone...we've now got a real datacomm guy in the ranks!]

I've been real lucky to usually get 1.2Mbit/sec—0.14Mbit/sec home ADSL over a 15+k∙ft loop (although it took 'em seven months to get it right.)




[This message has been edited by Bjarney (edited 10-07-2003).]

Here's a link to some info on DSL from the main TelCo in the U.K., British Telecom.

It's still not yet available on the small CO which serves this area though.

Bill:

It is much quicker and I use a wireless AirCard connection at 115kbps, especially fast uploading to the image gallery.

Haven't been able to get onto Mike's site for a few hours?

Not on my crummy dial-up connection.

Bill,
This is GREAT news!.
I've definitely noticed pages loading a lot quicker, since logging in today.

Whoopee!
I very recently (after 5 years) changed from my dial up America Off Line account to a cable connection.
Now, with the T1 line on ECN, even the threads with multiple images load immediately. No more trips to the kitchen to refill the coffee cup while waiting.
Kind of like driving a VW all your life, and then getting into a Corvette. I love it! ...S

Glad to hear things are going quicker.
BTW, we had T1 lines already but they were nearing capacity a lot lately so more were added.


Bill

Xanathar:

Why is the T-2 line not used anymore? Was the difference between it and the T-1 or the T-3 negligible?

What's a DS0?

By the way Bill, what does the cable for a T-1 line look like? Is it a thick multi-conductor cable like the phone wires under the street or is it just a pair of bell wire like what is used for a regular one-line telephone?

[This message has been edited by SvenNYC (edited 10-09-2003).]

A DS0 is one POTS line - a single 64K channel, 24 of which can be multiplexed onto a single 2 or 4-wire 1.544 Mb/s DS1 (T1 or HDSL, HDSL2, or HDSL4). European E1s have 31 channels with a total bandwidth of 2.048Mb/s

Sometimes your "T1 line" is really HDSLx. Either way you get one DS1 (24 DS0s) at the end.