1 00:00:00,360 --> 00:00:01,650 OK, great. 2 00:00:01,980 --> 00:00:07,800 Now, in addition to the other networking devices that we have already seen, there are other specialized 3 00:00:07,800 --> 00:00:10,890 devices which are really important in computer network. 4 00:00:12,310 --> 00:00:19,660 Now you have to actively participate in moving the network data and these devices help pretty much while 5 00:00:19,660 --> 00:00:24,340 you're transmitting data from one point to another point, when the fourth device that we're going to 6 00:00:24,340 --> 00:00:31,330 see is multilayer switch, then they are going to talk about what is a load balancer now, multi-device 7 00:00:31,330 --> 00:00:31,690 switch. 8 00:00:31,690 --> 00:00:33,220 You know, what is multilabel switch? 9 00:00:33,220 --> 00:00:34,360 I don't need to tell you. 10 00:00:35,380 --> 00:00:37,240 Then it is DNS server. 11 00:00:37,270 --> 00:00:39,070 You have all the domain name system. 12 00:00:39,580 --> 00:00:46,270 Then proxy server, which we all use, were downloading different things than encryption devices, analog 13 00:00:46,270 --> 00:00:56,380 modem packets, shipper, VPN concentrator, media converter and VIP and point VOIP is basically voice 14 00:00:56,380 --> 00:00:57,530 over Internet protocol. 15 00:00:58,120 --> 00:01:05,200 Now make sure that I'm not going to go into very detail of the scope then devices, but I'm just going 16 00:01:05,200 --> 00:01:11,200 to give you an overview so that if anyone asks you, hey, please tell me what is a proxy, so you will 17 00:01:11,200 --> 00:01:13,800 surely be able to answer all those questions. 18 00:01:14,290 --> 00:01:17,050 So let us get started with the multilayer switch.