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