Email: evarainbow@evarainbow.com

  • Cisco Network Security

    Securing network access and data center devices has never been a simple task. However, it’s always challenging and hard to define user access privileges and apply appropriate network policies, network controls, and so on. The new network security module is Zero Trust (ZT); it is a guiding concept that implies the network is always assumed…

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  • Using the CLI Command APIs – Evaluate Cisco Automation and Orchestration Technologies

    The Python programming language uses three APIs that can execute CLI commands. The APIs are available from the Python CLI module. You must enable the APIs with the from cli import * command. The arguments for these APIs are strings of CLI commands. To execute a CLI command through the Python interpreter, you enter the…

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  • Python Package for Cisco – Evaluate Cisco Automation and Orchestration Technologies

    Cisco NX-OS provides a Python package named cisco package that enables access to many core network device modules, such as interfaces, VLANs, VRFs, ACLs, and routes. After you have imported the cisco package, you can display its help by entering help (cisco) at the Python prompt. To display help on a specific module in the…

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  • Python – Evaluate Cisco Automation and Orchestration Technologies

    Python is a programming language that has high-level data structures and a simple approach to object-oriented programming. Python’s syntax and dynamic typing, together with its interpreted nature, make it an ideal language for scripting and rapid application development in many areas on most platforms. The Python interpreter and the standard library are freely available in…

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  • Ansible – Evaluate Cisco Automation and Orchestration Technologies

    Created by Michael DeHaan and acquired by Red Hat in 2015, Ansible is an open- source, agentless, tool for software provisioning, configuration management, and application deployment. Users have the flexibility to turn their laptops into an Ansible control station to automate basic tasks, or they can deploy a dedicated host to use Ansible as an…

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  • Evaluate Cisco Automation and Orchestration Technologies

    Most of the early automation tools were developed for server automation. As use cases of automation increased, many companies developed products that supported automation from day one. Cisco is no different; it developed several products such as the Cisco UCS Server, Cisco Nexus switches, and Cisco ACI, which now support automation tools such as Ansible…

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  • NX-API Developer Sandbox – Cisco Automation and Scripting Tools

    The Cisco NX-API Developer Sandbox is a web form hosted on the switch. It translates NX-OS CLI commands into equivalent XML or JSON payloads and converts NX-API REST payloads into their CLI equivalents. The web form is a single screen with three panes—Command (top pane), Request (bottom-left pane), and Response (bottom-right pane)—as shown in Figure…

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  • NX-API – Cisco Automation and Scripting Tools

    CLI commands are mostly run on the Nexus devices. NX-API enables you to access these CLIs by making them available outside the switch by using HTTP/HTTPS. You can use this extension to the existing Cisco Nexus CLI system on the Cisco Nexus 9000, 3000, 3500, 3600, and 7000 Series devices. NX-API supports show commands, configurations,…

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  • JSON – Cisco Automation and Scripting Tools

    JavaScript Object Notation (JSON) is a lightweight text-based open standard designed for human-readable data interchange. JSON objects contain data in a consistent format that can be passed and programmatically consumed more easily than the data in report formats. A JSON object is an unordered set of name/value pairs, so it tends to be self-explanatory, like…

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  • XML – Cisco Automation and Scripting Tools

    Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. XML follows a specific format and helps give structure to data. Because XML is platform-neutral, computer-language-neutral, and text-based, it is useful for data exchange between computers and for data…

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