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So now in this lecture, I'm going to explain in short about analog modern pichichero and weepin concentrator.



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Now for this cause you do not need to know in detail of these working of these devices, you just need



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to know what and how these devices work and what are they basically used for.



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So what is an analog modem, a modem that is modulated and a demodulator combination of these both.



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So a modem is a device that modulates an analog carrier signal to encode a digital information and then



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demodulator the signal to decode the transmitter information.



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I gave you an example of this when I explained the access points earlier in the section because at access



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point, modulates and demoted, it's a signal just like a modem figure on the screen.



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It shows a current analog modem that can be used here in today's network, although it's slow throughput.



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So in short, the goal of analog modem is to produce a signal that can be transmitted easily and decoded



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to reproduce the original data back.



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These signals are transmitted over telephone lines and demodulator by another modem at the receiver



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side in order to reach their digital data.



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Because modems connect to phone lines, the location and installation of these devices is fairly cut



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and dried.



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It will have to have a near phone line with one and connect connected to the phone line and another



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to a computer modem back.



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The analog modem operator clear one that is the physical layer, just like a repeater.



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Next is the packet.



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Now packet shipping, also known as traffic shipping, is a form of rate limiting and Internet traffic



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management technique that delays some or all the packets to bring them into compliance with you or your



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company's traffic profile.



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The figure on the screen shows a dedicated package paper from a blue coat, a company blue coat.



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So this process is to use to optimize the guaranteed performance, improve latency or increase usable



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bandwidth for some kinds of packets by delaying other kinds.



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Decided on by you in the last days of this lecture is going to be VPE and concentrator.



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A VPN concentrator is a device that accepts multiple VPN connections from remote locations.



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Now, although this function can be performed by a router or server, as with the encryption gateways



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and content filtering devices discussed earlier, the same performance benefits can be derived from



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dedicated.



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A specific device should be dedicated to this, and this device is nothing but the VPN concentrator.



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Moreover, additional functionality usually comes with these devices, one of which is shown in the



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figure on your screen.



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Well, that is it.



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I hope you understand the meaning of analog modem, which is used to modulate and demodulator signal.



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Then Package Chipo is to limit the number of packets and VPN concentrator is to provide the VPN connections



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from remote locations, multiple VPN connections from remote locations.



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Well, that's it for this lecture in the next lecture.



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We are going to see about the media converters and voice over Internet protocol.



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That is a VIP devices.