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Now, let’s say you open that file and add another name to the list, making it 11 names. Think of this as the “startup configuration”.
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To understand the difference between the running and startup configuration, imagine a Microsoft Word file that contains a list of ten (10) names. This is as opposed to the “startup configuration” which is the configuration used by the device when it starts/boots up. This command shows you the entire configuration that is currently running on the Cisco IOS device. The first command on the list is the show running-config command. Using this scenario, let’s look at five (5) common show commands you are likely to use during your troubleshooting exercise. Since this is a network you are not familiar with, you will need to use some commands to quickly come up to speed on the state of the network, and possibly find and fix the issues discovered. You have been told that the two PCs cannot communicate with each other. The only information you have been given is the IP address table below, which shows how the network should be configured: Device Imagine that you are a freelancer and you have just gotten a project to troubleshoot a network made up of Cisco IOS devices as shown below: To make this article as practical as possible, we will run through a troubleshooting scenario together, using the show commands as we go along, and fixing the issues we find. In this article, we will discuss five (5) common Cisco IOS show commands. Even more important is the skill to know which show command to use to view certain information on the device. However, you will be better off knowing the commands necessary to configure common features such as host names, IP addresses, access control lists, routing protocols, and so on which is where a cisco commands cheat sheet comes in really handy.
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Of course, I have come to realize that you definitely don’t need to know all the commands available on the Cisco IOS (probably not even realistic that’s what the “?” help is for). If you are using an RPS on this system, you need to use show env all to get the RPS status, as well.As a novice in the Cisco networking world, I wondered how I will ever be able to “cram” all the possible Cisco IOS commands. show env power only shows the status of the built-in power supply.
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Cisco Catalyst 2960 running Cisco IOS Software, C2960 Software (C2960-LANBASEK9-M), Version 12.2(37)SE1, RELEASE SOFTWARE (fc1) SLAP3#show env powerĪ quick note on the output of the Catalyst 2960. Cisco 7206XVR running Cisco IOS Software, 7200 Software (C7200-SPSERVICESK9-M), Version 12.4(15)T1, RELEASE SOFTWARE (fc2) SLAP2#show environment all Cisco 2611XM running Cisco IOS Software, C2600 Software (C2600-ADVIPSERVICESK9-M), Version 12.4(13a), RELEASE SOFTWARE (fc1) SLAP1#show environmentĮxample 2. I'll give you the proper syntax and results for a few different platforms.Įxample 1. That information is nestled snugly in the show environment command. Ever so often, you need to check the status of a the power supplies in a switch or router.