Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

T1 Line - Why is it so fast

T1 Line - Why is it so fast

T1 Line - Why is it so fast

I know this may sound silly but why is a T1 so fast and cost so much when it's only 1.544 Mbps?

I'm doing my CCNA studies and I just confused when they talk about WAN connections being 500Kbps+, or even the T1 line at 1.544 Mbps as being fast. My home internet connection is 10Mbps download and costs a fraction of the T1.

Could someone explain why a T1 line is considered fast and costs so much for it? I'm sure there is more to it than just a comparison of numbers (speed).

Thank you to those that respond. I appreciate the knowledge you all provide here.

RE: T1 Line - Why is it so fast


First, you might want to take your questions that come up in CCNA study to the Cisco Certification forum here at Tech Tips!!

As far as the cost for T1 being high for 1.54 mgs - it is the service agreement you are normally paying for - they normally have 4-5 "9"s of service/uptime - 99.99 or 99.999 which is very important for a business connection.

Cable, DSL, FIOs etc might be faster but you do not get the same agreement of 99.99% or 99.999% uptime that a business is paying for !!!!!

Hope this helps!

E.A. Broda
CCNA, CCDA, CCAI, Network +

RE: T1 Line - Why is it so fast

Thanks CiscoGuy. I thought about putting in the Cisco Cert. forums but wasn't sure if it should go there.

That does clarify the reason for having a T1. Not having any real world experience, it always confused me as to why a T1 was so great when it had lower bandwidth than home internet.


RE: T1 Line - Why is it so fast

The bandwidth is not necessarly lower.  Your 10meg home connection is shared by all your neighbors and can only receive or send. (2 wire or cable).  

A T1 is 4 wire and not shared. You get 1.5 in both directions at the same time.  There is no one to share the costs so you get the entire bill.

RE: T1 Line - Why is it so fast

So when I am paying for my 10Mbps internet speed and see a 200 - 600 kbps download speed, it's because it's shared. Now if I had a T1 and was downloading, it would be the full 1.544Mbps. Plus it would be that speed uploading as well.

Thanks for all of your input on this. Does make sense now.  

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close