1 00:00:00,440 --> 00:00:05,080 In this video we're going to look at the Cisco layaways software. 2 00:00:05,280 --> 00:00:11,150 It doesn't help to just talk about the Cisco IOS you need to know how you connect to a Cisco router. 3 00:00:11,190 --> 00:00:15,160 So how do you physically cable your connection to the Cisco router. 4 00:00:15,360 --> 00:00:19,080 Boot the router up and then look at various options. 5 00:00:19,170 --> 00:00:25,920 The Cisco Iowas software is the operating system that you'll find on a lot of Cisco routers and switches. 6 00:00:25,920 --> 00:00:31,840 Cisco does have other operating systems such as the nexus operating system. 7 00:00:31,890 --> 00:00:37,210 You'll learn about Nexus and other operating systems used on Cisco firewalls in other courses. 8 00:00:37,440 --> 00:00:45,600 The CCMA rotting and switching course focuses on the Cisco IOS which is a feature rich network operating 9 00:00:45,600 --> 00:00:47,700 system just like a PC. 10 00:00:47,740 --> 00:00:54,300 Cisco switches on rodders required operating systems and the Cisco Iowas software provides the network 11 00:00:54,300 --> 00:00:59,870 intelligence to meet two days demanding network requirements. 12 00:00:59,910 --> 00:01:05,610 So we'll talk about the Cisco Aiwass in this set of videos and we'll look at some of the basic Ioway 13 00:01:05,730 --> 00:01:12,300 command line interface functions and operations all Seelye functions and operations. 14 00:01:12,450 --> 00:01:19,590 We'll also look at how to navigate to the Cisco Iowas CLIA configuration modes such as user mode privilege 15 00:01:19,590 --> 00:01:24,540 mode global configuration mode interface mode and others. 16 00:01:24,540 --> 00:01:32,460 It is a fundamental skill of a Siska network engineer to know the modes because only certain commands 17 00:01:32,610 --> 00:01:38,760 are excepted and valid in specific Iowa modes as an example. 18 00:01:38,820 --> 00:01:47,220 You can only use the host name command in global configuration mode and not in user mode. 19 00:01:47,280 --> 00:01:54,840 One of the stumbling blocks for new network engineers is that they type a valid command but they type 20 00:01:54,840 --> 00:02:01,770 it in the wrong mode and hence the Cisco Rato switch rejects the command which causes confusion. 21 00:02:02,040 --> 00:02:07,100 Make sure you're configuring a valid command in the correct mode. 22 00:02:07,430 --> 00:02:11,460 We'll look at how to use the embedded help options as a type. 23 00:02:11,490 --> 00:02:13,880 Question mark is your friend. 24 00:02:13,980 --> 00:02:15,300 When in doubt use. 25 00:02:15,300 --> 00:02:16,560 Question mark. 26 00:02:16,710 --> 00:02:20,130 The Cisco IOS also supports command completion. 27 00:02:20,310 --> 00:02:26,880 So use tab to complete commands when necessary to save you making typing mistakes and to check that 28 00:02:26,910 --> 00:02:28,490 your commands are valid. 29 00:02:28,500 --> 00:02:34,530 We'll also look at how to manage configurations and how to use additional Iowas features that will help 30 00:02:34,680 --> 00:02:39,100 improve the user experience in the Seelye as an example. 31 00:02:39,180 --> 00:02:44,060 Logging synchronous is a good command to enable on your Cisco devices. 32 00:02:44,220 --> 00:02:52,160 It can save you a lot of frustration the Cisco Aiwa software is the most common metric operating system 33 00:02:52,280 --> 00:02:53,490 in the real world. 34 00:02:53,630 --> 00:03:00,800 Cisco are the market leaders in networking and this Cisco Ioway is the software that powers most Cisco 35 00:03:00,800 --> 00:03:04,960 Raud isn't switches that you'll find in the field today. 36 00:03:05,120 --> 00:03:11,550 So like a computer a switch or router cannot function without some type of operating system. 37 00:03:11,870 --> 00:03:19,310 As mentioned Cisco have multiple operating systems such as the nexus OS and others but the one that 38 00:03:19,310 --> 00:03:23,070 we are going to concentrate on in this course is the Cisco IOS. 39 00:03:23,240 --> 00:03:29,000 Without an operating system a router or switch cannot function when the rot or switch boots up it needs 40 00:03:29,000 --> 00:03:35,780 to boot up the operating system and I'll demonstrate a router booting up and loading the Cisco operating 41 00:03:35,780 --> 00:03:37,020 system in a moment. 42 00:03:37,070 --> 00:03:43,430 So the Cisco Iowas software is the system operating system that you'll find in a lot of routers and 43 00:03:43,430 --> 00:03:49,030 switches and it's the most common type that you probably going to find in most environments. 44 00:03:49,040 --> 00:03:56,080 It's important to realize that it powers both small and large devices as well as switches and routers. 45 00:03:56,090 --> 00:04:02,860 So in other words if you know the Cisco Aiwass and all you've configured is a small router. 46 00:04:02,960 --> 00:04:10,190 It's not that difficult to move to larger devices or larger rods or different types of devices like 47 00:04:10,310 --> 00:04:11,710 large switches. 48 00:04:11,780 --> 00:04:19,000 The Cisco Iowa software exists across multiple products of varying sizes in the really old days. 49 00:04:19,100 --> 00:04:25,250 Some Cisco switches support a catus or catalyst operating system and that was confusing because you 50 00:04:25,250 --> 00:04:30,230 had to know both the Cisco IOS and the catalyst operating system. 51 00:04:30,320 --> 00:04:35,760 That's fortunately not true today today you would need to learn the Cisco Ioway. 52 00:04:35,930 --> 00:04:41,270 And you may encounter a different operating system such as the nexus OS or operating system running 53 00:04:41,270 --> 00:04:42,340 on firewalls. 54 00:04:42,440 --> 00:04:44,660 But the principles are the same. 55 00:04:44,660 --> 00:04:50,760 It's not that difficult to move from one Cisco device to another because the interfaces will be familiar 56 00:04:50,810 --> 00:04:51,490 to you. 57 00:04:51,620 --> 00:04:59,180 Once you learn the Cisco IOS before it's worth your time and effort to learn how the Cisco Iowas works. 58 00:04:59,180 --> 00:05:05,470 Other vendors like HP have similar command line interfaces to the Cisco IOS. 59 00:05:05,600 --> 00:05:12,300 So learning the Cisco IOS may even be beneficial if you come across devices from other vendors. 60 00:05:12,350 --> 00:05:14,520 So the Cisco IOS is used for routers. 61 00:05:14,660 --> 00:05:17,420 It's used for local area network switches. 62 00:05:17,420 --> 00:05:24,200 It's even used on wireless access points and very large routers and switches so you'll find it on many 63 00:05:24,200 --> 00:05:25,400 devices. 64 00:05:25,400 --> 00:05:30,830 Now obviously they're going to be differences between interfaces on a router versus interfaces on a 65 00:05:30,830 --> 00:05:31,490 switch. 66 00:05:31,670 --> 00:05:35,540 A router may have a serial interface and a switch may not. 67 00:05:35,540 --> 00:05:41,510 But the general principles of the same cross of different device families and different product lines 68 00:05:42,260 --> 00:05:48,120 you configure services such as writing and switching using the C ally or command line interface. 69 00:05:48,140 --> 00:05:54,380 Typically you connect to a device using a console connection when you initially configure the device 70 00:05:54,800 --> 00:05:59,950 or you may configure it remotely using telnet or S-sh. 71 00:06:00,140 --> 00:06:05,820 It doesn't matter how you connect to the device when you access the Cisco Iowas see a lie. 72 00:06:05,870 --> 00:06:09,430 It's generally referred to as an exec session. 73 00:06:09,740 --> 00:06:15,890 And the good thing is the look and feel of the command line interface is similar across various device 74 00:06:15,890 --> 00:06:18,860 types although features may be different. 75 00:06:18,860 --> 00:06:24,280 So on a switch you may not be able to configure BGP but you may be able to configure it on a router 76 00:06:25,100 --> 00:06:32,420 but the moral of the story is it's worth your time learning the CLIA because you'll encounter it very 77 00:06:32,420 --> 00:06:34,550 often in your networking career.