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  • #2074694

    Fractional T1?

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    by earthworm ·

    OK, I am not sure if this would be the best place to put this question but here you go anyway.

    I am the net admin of a network consisting of 60 clients, and 2 servers. 1 PDC and one Proxy/BDC, using multilinked phone lines for internet access. Ihave been informed that our company is upgrading our phone system, and will be getting a T1 line run and that they would like for the internet access to use part of that line once it is run. I have been put in charge of getting estimates, and supporting this once it is in.

    I know pretty much nothing about T1 access, DSU’s and such. We use 3 24 port hubs, and I haven’t had to use switches or routers before. I know their function but have not had to implement them before.

    I have a strategy meeting to be in next week to give information on this topic to the big wigs, and I no nothing yet. So my question to you all, is where would be the best place to get basic information on how to do this, what hardware is required, and cost of said hardware.

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    • #3776148

      Fractional T1?

      by al hedstrom ·

      In reply to Fractional T1?

      I suggest setting up an appointment with someone at your local ISP. They’re been doing this since Day One and can give you a quick education on the concept, methodology, the tools and the hardware.

      Sounds like fun. Good luck.

      Al Hedstrom

    • #3776134

      Fractional T1?

      by leo.valmores ·

      In reply to Fractional T1?

      I agree with Answer 1’s suggestion to meet with your ISP. They can help you with the selection of router/firewall appliances, TCP/IP setup/address, etc. You can also request them to monitor your traffic for certain period or time so you have benchmarks of your users Internet activities. Maybe a DSL would suffice!

      You should also set up meeting with our phone system supplier. They should also advise you what would be the expected phone traffic on the T1. This will allow you how many channels out of the 24 x 64Kbps you can allot for your ISP.

      Hope this helps.

    • #3776133

      Fractional T1?

      by douglas168 ·

      In reply to Fractional T1?

      ISP have in-house consultants that will be able to assist you. Or you can bringing in your own consultants.

      As to where to get basic info on h/w, price..etc, check out

      nwfusion.com
      networkcomputing.com

      hope this helps!

    • #3777906

      Fractional T1?

      by defaultuser ·

      In reply to Fractional T1?

      First of all:
      A fractional T-1 or T-3 line is a T-1 or T-3 digital phone line…that is leased to a customer at a fraction of its data-carrying capacity and at a correspondingly lower cost. A T-1 line contains 24 channels, each with a data transfer capacity of 64 Kbps. The customer can rent some number of the 24 channels. The transmission method and speed of transfer remain the same.

      2nd: your strategy at this point in time (that is, the beginning of this project) should read somethinglike this:
      1. evaluate your current bandwidth through communication with whomever provides your internet access
      2. determine if a T1 is necessary. refer to this as a “Cost-Benefits analysis”. Do this by having a T1 provider assess the bandwidth evaluation.
      3. if so, have the T1 provider give you a quote AND the ISP give you a quote. Between the two of them, you will have covered all aspects of the project.

      Lastly, I would beef up the “plan”, put it in writing, schedule some meetings, and, most important

    • #3777905

      Fractional T1?

      by defaultuser ·

      In reply to Fractional T1?

      Got cut off….
      Lastly, I would beef up the “plan”, put it in writing, schedule some meetings, and, most importantly, give the impression to the “big wigs” that you can handle this job, because this project will be 95% supervision on your part; the technical part is done by the other people. GOOD LUCK

    • #3777887

      Fractional T1?

      by calves ·

      In reply to Fractional T1?

      Well, I know you would probably need mostly price for service, installation and hardware and a couple choices for providers, right?
      Go to http://www.2wire.com/dsllookup/finddsl.asp

      and checkout also

      http://www.rhythms.com/index.html

      Also, checkout your local phone company Web page for services and information.

      You’ll be a pro before you know it!

      Good Luck!

    • #3777854

      Fractional T1?

      by mckaytech ·

      In reply to Fractional T1?

      If a vendor is already working on the telephone upgrade and the equipment has been specified, I would suggest them as a good source of information. A T-1 is just a data circuit that terminates in a device on your premises. It can carry 1.544 megabits of information and that can be divided into one big data pipe, 24 voice channels or some combination in between. How much is available to your Internet circuit depends on how many channels the voice equipment will use.

      The last one I set up used a DSU with 3 cards. The first two were set for voice (16 lines) and that left 384k of bandwidth for data. The third card was an interface to the router.

      Telco and data are converging and your telco vendor should be able to educate you on thedata side as well.

      paul

      • #3776983

        Fractional T1?

        by earthworm ·

        In reply to Fractional T1?

        The vendor told me not to go this way. Thanx anyway.

    • #3777772

      Fractional T1?

      by johnny123 ·

      In reply to Fractional T1?

      The T1, is it from your local SWBELL Telephone company? Is the T1 to replace the existing incoming and outgoing telephone? or is this T1 point-to-point?

      To me it sound like SWBELL will give you “T1” equivalent of telephone lines incoming and outgoing. (That 24 lines as you know) Everything is done at the TELCO. Tell them that you want 16 lines incoming and outgoing and the other 8 to go to your ISP. The lines that you care to use for data wil be broke off at your Telepone system dsu on your side. (You will need a router with T1 capabilities.) You will then tell your router to use XXXk on you wan port.(64k per channel used) Your isp will have to have the equipment to accept such a line. THIS IS AN EXPENSIVE WAY TO DO THINGS!!!!!!!

      Try to convince them to use services like DSL or CABLE modems to connect to your ISP.
      ———-
      However, if this T1 is a point-to-point circuit from one location (yours) to another(yours), it’s easy! All you have to do is plug the incoming T1 into your dsu and

      • #3776984

        Fractional T1?

        by earthworm ·

        In reply to Fractional T1?

        Well I will be selling cable access (well a revision of that.), much cheeper, and higher bandwidth. Thanx for your help.

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