Drawing a network diagram...

Discussion in 'OT Technology' started by NavS, Apr 14, 2007.

  1. NavS

    NavS its me!

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    I got an assignment where I had to draw a digram based on what ever specs the teacher gave, well I came up with it, but there's a question that asks which service would I choose, BRI or PRI... I checked wiki but all it says is PRI uses like ten times more b channels... it doesn't make sense...

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  2. NavS

    NavS its me!

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    I think I messed up somewhere on that diagram....
     
  3. P07r0457

    P07r0457 New Member

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    They use different protocols. a B-channel is most-often used with ISDN, as where PRI would be used in T-1 and fractional-T-1 services.


    So, to answer your question, are you using ISDN or (fractional) T-1 links? From your diagram, the answer is ISDN, which would mean BRI.
     
  4. NavS

    NavS its me!

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    So I should say Choose BRI and say that it's good enough since there aren't many workstations and they won't be needing all that much bandwidth?
     
  5. P07r0457

    P07r0457 New Member

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    depends. If you need <= 128Kbps symmetrical bandwidth, then ISDN is fine. If you need > 128Kbps bandwidth, then I would go with a fractional T-1 line for internet connectivity.

    By your diagram, you should actually be using frame-relay or fibre to a MAN thru your provider -- depending on location and cost.
     
  6. NavS

    NavS its me!

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    In the instructions it says that I have two locations(distant I suppose) one location has internet through NAT, and the other place doesn't but the two locations need to connect together in a private network through ISDN. Also it says the routers function as TE1 devices only.
     
  7. 5Gen_Prelude

    5Gen_Prelude There might not be an "I" in the word "Team", but

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    Time to update the curriculum!
     
  8. NavS

    NavS its me!

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    Ha, my gay computer crashed, and I got to do the chart and everything over again! too bad I gotta submit this by 11:59, I remember most of what I wrote though so I'm sorta good...
     
  9. alptekin

    alptekin New Member

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    its to screwy looking. i would have some good advice but im drunk. maybe in a little.
     
  10. P07r0457

    P07r0457 New Member

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    oh yea, BRI circuits are cheaper than PRI circuits for low-bandwidth applications.
     

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