The enterprise network these days are already changing quickly , especially with regards to employee mobility. The technological advancements have helped employees to gain access in enterprise resources through the use of various devices such as smartphones, tablets, and personal laptops. Having an access to resources regardless of where you are is very advantageous since it can increase the productivity considerably, however, its downside includes the probability of increasing data breaches, as well as security threats due to the fact that you may no longer have control over the security posture of the devices that is trying to access the network. Monitoring and controlling the devices that tries to access the network is a big task already, which means that it even becomes more challenging if the need for more access will occur.
With this is mind, it is wiser to use the Cisco identity service engine (ISE) which is an identity-based network that is capable of accessing the control and policy of enforcement systems. By using an identity service engine (ISE), the network administrator that you have assigned will be able to centrally control the access policies used for wired and wireless endpoints depending on the information gathered through some messages that are passed between the device and the ISE node, which is also regarded as profiling. Moreover, ISE also updates the profiling database daily to keep up with the greatest, as well as the latest devices so that there will be no gaps in device visibility.
Usually, identity service engine or ISE makes an identity attachment to a device based upon the function, user, and other features so that it can provide security compliance and policy enforcement prior to authorizing the device to access the network. Depending on the results that comes from different variables, an endpoint can only be allowed to access the network if the specific set of rules are applied to the interface where it is connected to, otherwise, the endpoint will be denied or can be given a guest access that are based on the guidelines that your company has. In other words, ISE is an automated policy enforcement engine that deals with the daily task of device and guest on boarding, access list management, switch port VLAN changes for the end-users, and others, in order for the network administrator to focus on other projects and important tasks.
With regards to ISE platforms, it is a distributed deployment node and is made up of three different types which includes monitoring and troubleshooting node (MnT), policy administration node (PAN), and policy services node (PSN).
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