1 00:00:00,420 --> 00:00:08,430 Now, let us conclude this section by talking something about rooters, OK, routers are used to connect 2 00:00:08,940 --> 00:00:12,960 together and to load packets of data from one network to another. 3 00:00:13,650 --> 00:00:20,100 Cisco has become the de facto standard for routers because of its high quality products, great selection 4 00:00:20,100 --> 00:00:23,460 and fantastic service routers by default. 5 00:00:23,760 --> 00:00:25,450 Breakup of broadcast domain. 6 00:00:26,310 --> 00:00:33,810 Now, breaking up a broadcast domain is important because when a host of Kosovo sends a network broadcast, 7 00:00:33,810 --> 00:00:39,600 every device on the network must read and process that broadcast unless you have got Rafto. 8 00:00:40,290 --> 00:00:46,620 So in of the interface receives this broadcast, it can respond by basically saying thanks but no thanks 9 00:00:47,100 --> 00:00:50,860 and discard the broadcast without forwarding it on the networks. 10 00:00:51,390 --> 00:00:56,700 Now, even though routers are known for breaking a broadcast domains by default, it's important to 11 00:00:56,700 --> 00:01:00,280 remember that the break up collision domains as well. 12 00:01:00,870 --> 00:01:06,510 So in short, routers are the devices which break broadcast domains as well as collision domains. 13 00:01:07,110 --> 00:01:10,410 Now, there are a couple of disadvantages and advantages as well. 14 00:01:10,410 --> 00:01:18,630 But first, we'll see advantages without those do not forward broadcast by default or multicast packets. 15 00:01:19,200 --> 00:01:23,610 Now routers use logical address in the network layer header. 16 00:01:23,970 --> 00:01:29,760 Then routers can use access lists to control security on the type of packets. 17 00:01:30,330 --> 00:01:32,870 Routers can provide layer to switching. 18 00:01:32,880 --> 00:01:33,960 We all know that. 19 00:01:34,360 --> 00:01:39,330 So that's it for this lecture in the next lecture in the last election of this election, we will have 20 00:01:39,330 --> 00:01:44,430 a quick recap and summary of what we have seen and learned in this section.