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In the section where you talk about the broad band technologies
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insular communications broadband that is what bandwidth data transmission which transports multiple
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signals and traffic types the medium can be coaxial cable optical fiber radio or twisted pair in the
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context of Internet access.
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Broadband is used to mean any high speed Internet access.
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That is always on and faster than the dial up access or through additional analog or ISDN PSTN services.
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First because you were going to focus on is the DOCSIS DOCSIS is an international telecommunications
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standards that permits the addition of high bandwidth data transfer to an existing cable TV system.
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In this technology users are connected through a cable modem as you can see in your really.
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We have users and our users are connected to the cable modem and their modem is connected to it.
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Since this device as you can see your CMT has two arseholes downstream and upstream ports it is functionally
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is similar to the D.S. lamb the way it's used in a DSL system which we will see in our next slides.
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Let's go ahead of it the exterior cell technology.
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DSL is a family of technologies that are used to transmit digital data or telephone lines.
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Mainly we have two types of DSL and they are 80 a sale year a he refers to as symmetric which means
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download speed is different and more than the upper limits of time and we have the asty as well as refers
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to symmetric and which means download and upload speeds are the same.
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For example if we ever download speed of two million per second our upload will be as well to make of
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it per second for the SD SL technologies.
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Let's go the Theakston connection.
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This our connection and you can in here real use is as you can see in year end users are connecting
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there and the worst is for example their PCs to the DSL modem.
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And in this technology DSL modems are connected to the west name this Lamhe a digital subscriber line
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access multiplexer.
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This lamp is a netbook to us often located in a telephone exchange that connects multiple customer digital
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subscriber line interfaces to a high speed digital to their communications channel using multiplexing
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techniques and this slum is most of the times connect the three of us device these Beerfest us is responsible
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for Tripler activities or these Phaedra's to us also can assign a public IP address to your DSL modem.
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Then there is Buras two aces are you connected to the other Nueces on the ISP backbone and you are getting
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to the Internet by using your modem More them from is connected.
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Is that Islam the Islam is connected to the ISP brothers which are the MPAA as most of the times and
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you are getting to the Internet.
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Dan lets go ahead and display the device splitter is a device which is used for separating words and
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data signals in DSL technologies.
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Mainly it is a low pass filter and separates the data and the wire is terrific.
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As you can see in a year or PC is connected to our modem and in our play then we have one port which
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is connected to our splitter and our splitter has another port as you can see in here which goes through
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our phone and are DSL port goes to our PC as you can see here and we have the line port of the splitter
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which is connected to the our circuit
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an environment broadband technologies we have now commonly using the y fi WiMax cellular and these satellite
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technologies.
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Let's go ahead with the p p p or the point to point protocol or internet is a specification for connecting
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multiple users on an Ethernet local area network to remote site through common customer premises equipment
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which is the telephone Kinney's term for a modem and similar devices PDP or can be used to have an office
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or building full of users share a common DSL cable modem or wireless connection to the Internet or it
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combines the point to point protocol commonly used in dial up connections with the Internet Protocol
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which supports multiple users in a local area network.
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The PBB political information is encapsulated within the Internet frame and let's go and how we can
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configure the BPP or all rather one which is the customer other we are typing and interface and the
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interface is dialin interface this time.
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And we define a dialer number by tapping into freestyler.
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We are getting into the interface mode and in here we are typing an encapsulation meter which is BPP
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near as you can see and we can also define an empty number and we are defending the IP address negotiator's
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command.
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Which shows us we are going to negotiate with the ISP to gain an IP address there we are defining the
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hostname and the password as you can see.
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Then after we're defining our IP poo by tapping the the pool wan then we are getting into we are actually
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interface interface.
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Face the truth is 0 0 0 and we are typing the BPP or client dial pool number one.
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Please pay attention that dialer pool numbers must match for your other one and the other two which
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is the ISP or other.
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And to verify the PTV or configuration we can use the IP interface wave command is now waiting in here.
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So IP your interface brief command and we can't check the dialer interface.
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If it has assigned and I tell this by the rather true ISP side or not and we find the people or configuration
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we can also use the show interfaces and our dial interface command and we can check the IP address in
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here.
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If it's assigned by the other two or not then another verification that is the shop or session command
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and troubleshoot the PDP or configuration.
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We can use the debug BPP negotiation command.
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