1 00:00:00,810 --> 00:00:08,640 Cisco constantly releasing new versions of the so-called us which include new features as well as resolve 2 00:00:08,700 --> 00:00:16,950 issues such as bugs in the IRS in this video we'll look at upgrading Cisco Iowas images the high level 3 00:00:16,950 --> 00:00:25,440 steps that you firstly need to select and download the correct Iowas image for your router you then 4 00:00:25,450 --> 00:00:33,410 need to verify connectivity to your TVT server where you've downloaded and stored the new Iowa image. 5 00:00:33,560 --> 00:00:40,460 You should verify that your router has sufficient flash memory space for the new iOS image and then 6 00:00:40,460 --> 00:00:45,310 you copy the Iowas file from the TFT server to the router. 7 00:00:45,770 --> 00:00:50,690 You then configure the router to boot using the new Cisco Iowa image. 8 00:00:50,690 --> 00:00:59,620 And then lastly reload the router so that it repeats and load the new Iowas image into memory. 9 00:01:01,110 --> 00:01:10,650 In this example of an 1841 Grada so show version shows me the platform we are running currently the 10 00:01:10,860 --> 00:01:13,690 SkyWest 1841 software. 11 00:01:13,750 --> 00:01:17,580 So this is the current release and version of software that we're running. 12 00:01:18,010 --> 00:01:22,420 This is the boot from operating system version. 13 00:01:22,530 --> 00:01:26,560 And once again this is a Cisco 1841 router. 14 00:01:26,610 --> 00:01:34,110 So on the Cisco Web site I've gone to support and downloads and I'm going to select 1841 integrated 15 00:01:34,110 --> 00:01:37,870 services Rodda I'm going to select software on chessy. 16 00:01:38,080 --> 00:01:45,180 And in this example I'm going to look at Cisco Iris images rather than run monitor all of the operating 17 00:01:45,180 --> 00:01:52,820 systems and what you'd need to do now is download the relevant version of iOS. 18 00:01:52,830 --> 00:02:01,770 Now it's important that the DRAM and Flash be large enough for the operating system that you downloading. 19 00:02:01,770 --> 00:02:06,070 This router has the same amount of memory. 20 00:02:06,090 --> 00:02:07,990 So you need to add those two together. 21 00:02:08,860 --> 00:02:12,790 So that's the amount plus the amount 22 00:02:15,710 --> 00:02:19,700 which gives us about 130 mega RAM. 23 00:02:19,850 --> 00:02:24,320 We've got about 60 to make of Flash. 24 00:02:24,440 --> 00:02:31,340 So my Rodda would not to be able to use the version of operating system because the RAM and flash requirements 25 00:02:31,340 --> 00:02:35,960 are greater than what this Rodek currently has installed. 26 00:02:35,960 --> 00:02:46,280 So very importantly make sure that your router can support both the DRAM and flash requirements of any 27 00:02:46,280 --> 00:02:52,970 new operating system that you download from Cisco so click on the download link to download the operating 28 00:02:52,970 --> 00:02:53,730 system. 29 00:02:53,840 --> 00:02:57,310 You need to log in and make sure that you have a service contract. 30 00:02:57,500 --> 00:03:05,080 So do that and then download the operating system to your local PC. 31 00:03:05,180 --> 00:03:10,690 In my example I'm going to use the operating system which I've already downloaded. 32 00:03:10,780 --> 00:03:16,270 You're going to want to make sure that your router has enough Flesch space for the new image that you 33 00:03:16,280 --> 00:03:24,370 downloading so use the Camacho show flash to ensure that the amount of available space is enough for 34 00:03:24,370 --> 00:03:27,530 the image that you want a copy to flash. 35 00:03:27,580 --> 00:03:34,690 In my example of a ready copied image the image is only 15 meg in size and I have enough space in flash 36 00:03:34,690 --> 00:03:42,620 to copy another version of this image or a different image into the flash of the Rodda. 37 00:03:42,850 --> 00:03:52,220 At the moment this Rodda is using this operating system 12. full to T4 that can be seen in the flash 38 00:03:52,220 --> 00:03:53,010 of the Rodda. 39 00:03:53,180 --> 00:03:55,550 So this is the image that's being used. 40 00:03:55,610 --> 00:04:01,730 Let's pretend that we're going to upgrade the broader to a newer version even though it's the same. 41 00:04:01,730 --> 00:04:03,620 I'll show you the full process. 42 00:04:03,860 --> 00:04:11,560 So what you would do is download the relevant operating system from Cisco and put it in your teeth to 43 00:04:11,570 --> 00:04:14,660 be servers directory. 44 00:04:14,670 --> 00:04:21,550 In this example I'm using solar winds and this is the directory that the be serviced pointing to. 45 00:04:21,630 --> 00:04:34,600 So you would Topkapi in this example P.E. Flesch Precentor what does the IP address of the server. 46 00:04:34,610 --> 00:04:38,070 So in my example it's 1 2 1 6 8 1 9 9. 47 00:04:38,410 --> 00:04:40,910 What is the source file that we want to copy. 48 00:04:41,090 --> 00:04:47,990 So that file make sure that you put an extension in the file name. 49 00:04:47,990 --> 00:04:50,180 What does the destination file name. 50 00:04:50,180 --> 00:04:56,460 In this example I'll make it file to we want with that that Folley already exists. 51 00:04:56,460 --> 00:04:57,880 Do we want to override it. 52 00:04:57,980 --> 00:05:01,070 And in this example I'm going to override it. 53 00:05:01,210 --> 00:05:09,500 So that file will be overridden with this new file that's copied down from the TFT server so we can 54 00:05:09,500 --> 00:05:13,400 see some messages on the TV service stating that the file is being fetched. 55 00:05:13,430 --> 00:05:15,580 So there's a get message. 56 00:05:15,800 --> 00:05:21,600 We can see the file being copied down to the router from the TFT server. 57 00:05:22,020 --> 00:05:23,870 That'll take a while. 58 00:05:23,900 --> 00:05:33,080 And the length of time depends on how large the Iowas fall is and what kind of connection you've got 59 00:05:33,080 --> 00:05:36,920 between the two FTB server and the router. 60 00:05:36,920 --> 00:05:43,460 If you're doing this across or when a wide area network as an example it could take a lot longer. 61 00:05:43,490 --> 00:05:50,210 Now in that example there was a problem where part of the file wasn't successfully copied but it wouldn't 62 00:05:50,210 --> 00:05:50,860 be a problem. 63 00:05:50,870 --> 00:06:01,910 Even though we're using TFT P because the TFT protocol has retransmissions and checks of files received. 64 00:06:01,910 --> 00:06:05,830 So even though you use a datagram protocol UDP is being used. 65 00:06:06,050 --> 00:06:14,090 The TFT protocol ensures that the full file is copied and we can see that we had a check of the file 66 00:06:14,090 --> 00:06:15,500 that succeeded. 67 00:06:15,590 --> 00:06:18,530 So the file was copied successfully. 68 00:06:18,530 --> 00:06:27,050 So once again in Flash This is the file that we've copied down and now we can tell the router to boot 69 00:06:27,560 --> 00:06:38,270 the system from the flash and the file that we're going to use is this new file so I've added that command 70 00:06:38,300 --> 00:06:39,900 to the running config. 71 00:06:40,460 --> 00:06:44,360 Once again at the moment it's not using that file. 72 00:06:44,510 --> 00:06:47,990 It's using the file 64 DUP. 73 00:06:48,030 --> 00:06:56,410 Ben but we have now told the router to use T4 underscore too. 74 00:06:56,600 --> 00:07:01,670 So it's a different file to the original file that the router is using. 75 00:07:01,670 --> 00:07:06,380 So I'll save the configuration and then I'll reload the router. 76 00:07:06,770 --> 00:07:14,210 So when the router boots now it will use the new file rather than the previous file as the operating 77 00:07:14,210 --> 00:07:17,550 system that's loaded into memory. 78 00:07:17,630 --> 00:07:22,130 I'll speed up the boot process and the video to save you the time of watching the rot a boot up. 79 00:07:28,200 --> 00:07:29,860 OK serratus booted up. 80 00:07:29,910 --> 00:07:32,250 I'll press enter to continue. 81 00:07:34,350 --> 00:07:36,110 Put in my relevant password. 82 00:07:37,860 --> 00:07:46,040 Show version shows us now that it's using that teach for under school to burn file. 83 00:07:46,040 --> 00:07:52,670 So it's now using the new operating system that we downloaded from the TFT server. 84 00:07:52,670 --> 00:07:58,740 It's not using the original file that we had in Flash. 85 00:07:58,760 --> 00:08:02,030 It's using this file rather than the file.