Use IOS to configure locks to prevent router configuration confusion

Many users are not particularly familiar with vro configurations, so such errors often occur during use. The following describes the IOS configuration locks in vrouters, prevent router configuration errors. If multiple network administrators connect to the vro at the same time to modify the configurations, the changes may be lost or only part of the content can be executed, resulting in problems in the operation of the entire network. In this article, David Davis will introduce a new feature of the Cisco network operating system: configuration lock, which can be used to prevent this situation.

How can I configure a lock?

As everyone knows, as long as you have the permissions of the network administrator, you can change the running router configuration of the router at any time. If you are in charge of a large computer mall or a team of several technical personnel, this new function of the Cisco network operating system can help you control the change of the running router configuration. It can be used to control configuration changes. because it includes the Access session lock function, it is called a configuration lock. The lock configuration function supports automatic or manual settings. I personally think most network administrators will choose to set the settings to work in automatic mode. In automatic mode, how to set the configuration lock in automatic mode is very easy to activate the configuration lock function.

If you choose to use the automatic keyword setting, it will automatically lock the related router configuration at the time when you use the terminal to configure the router. If you select manual keyword setting, it will lock the configuration at the time when the keyword is used. Let's take a few examples to see how powerful this function is. If you choose to use the manual keyword mode, you must enable the router configuration lock function every time you enter the global configuration mode. Therefore, you must add keywords at the end of the vro configuration time as shown in the following example.

How can I understand the operation of the router configuration lock? How can I know if someone is modifying the config file? You can use the show lock configuration command to complete the corresponding work. Note that the command output results are completely different when no lock or lock is available. Note that the effect of the lock configuration function is temporary. In this case, the network administrator should exit the configuration mode of the Cisco network operating system as soon as possible. When another network administrator attempts to remotely log on to the vro, the user name may be incorrect due to the exclusive lock function. With its help, it is more convenient to modify the running configuration. To some extent, this is a good opportunity to reevaluate the existing network management rules to understand the actual network operation. You should also create new rules based on the problems that arise to make the work of the network administrator more effective.

This is a good opportunity. I will briefly introduce the rollback function of the exclusive lock. It can be used when your administrator tries to restore the running configuration to the saved configuration copy. This feature is not exactly the same as the configuration rollback feature. It will replace all current vro configurations of the Cisco network operating system. However, there are also some restrictions. This feature is available in the Access session lock mode. It supports operations such as displaying the execution status of related commands when the vro configuration is modified. For more information, visit the Cisco Official Website: Configuration Replace and Configuration Rollback ).

For network management, the configuration lock function provided by Cisco network operating system is a very important component. You can use this function to lock the running configurations of other network administrators and even view the command execution status. You can also set the time of the configuration lock to ensure that the effect of the vro configuration changes can be displayed. With the help of the lock configuration function, the level and efficiency of the network will be maximized. For more information, log on to Cisco's official website: Exclusive Configuration Change Access (Config Lock ).