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Fitting WAN technologies together

Discussion in 'Networking' started by ClassicD, Jan 28, 2011.

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  1. ClassicD

    ClassicD Thread Starter

    Jan 28, 2011

    I am new to this forum and hope it can be helpfull...I have a few questions

    I am wondering if Frame Relay and ATM are only for businesses who need some virtual circuit and am i right in thinking that they would either use T1/E1 or Fiber Ethernet carriers for this?

    Or is Frame Relay and ATM used in all types on WAN technologies, so for example my DSL or cable modem is connected to some multiplexer and after that it will use Frame Relay or ATM using a T1/E1 carrier...and after that probably a T3/E3 carrier and probably after that on the internet backbone SONET using an OC? Also since SONET is protocol neutral, SONET would still use either Frame Relay or ATM or MPLS?

    Is it the likes of Frame Relay and ATM that will get replaced by MPLS.

    The thing is i know how all these technologies work but im trying to get my head around how they all fit together?

    If anyone can help me out to give me an insight of how these technologies fit together...maybe a diagram or link to a good web page?

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