1. Introduction Course Overview Students Industrial Work Experience Scheme (SIWES) Agboko B.A

2. The Junos OS 1. Robust, modular operating system 2. Base on the FreeBSD Unix operating system (the kernel is based on the FREEBSD UNIX operating system, which is an open source software system) Students Industrial Work Experience Scheme (SIWES) Agboko B.A

3. Single software Train 1.A single software train for all platforms running the junos OS 2.Eases management overhead by providing a consistent set of features that are implemented in a consistent manner Students Industrial Work Experience Scheme (SIWES) Agboko B.A

4. Students Industrial Work Experience Scheme (SIWES) Agboko B.A

5. 1.The processes that control routing and switching protocols are clearly separated from the processes that forward frames, packets through the device running the junos OS 2.The RE is the brain of the platform: its responsible for performing protocol updates and system management 3.The RE maintains the routing table, bridge table and primary forwarding table and connects to the packet forwarding engine (PTE) through the internal link. 4.This architectural design also makes possible the incorporation of high availability features like graceful routing engine switchover (GRES), nonstop active routing (NSR) and unified in-service software updates (ISSUs) Students Industrial Work Experience Scheme (SIWES) Agboko B.A

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7. 1.Maintain Routing engine intelligence 2.Controls and monitors the chassis 3.Manages Packet Forwarding Engine The RE controls the PFE by providing accurate up-to-date layer2 and layer3 forwarding table Students Industrial Work Experience Scheme (SIWES) Agboko B.A

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9. Students Industrial Work Experience Scheme (SIWES) Agboko B.A User Interface Options

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13. 1.Operational mode in operational mode, you use the CLI to monitor and troubleshoot the device. The monitor, ping, show, test, and tracroute commands lets you display information and test network connectivity for the device. 2.Configuration mode in configuration mode, you can configure all the properties of the Junos device including interfaces, protocols, and user access as well as several hardware properties Students Industrial Work Experience Scheme (SIWES) Agboko B.A

14. CLI Basics Students Industrial Work Experience Scheme (SIWES) Agboko B.A

15. Ways of accessing help within the CLI 1.Type ? Any wherr on the CLI to get help (e.g>> ?) 2.Help topic “key word” ? (e.g >>help topic interfaces ?) 3.Help with configuration syntax (e.g>>help reference interfaces address) 3. Command and variable completion (e.g>> sh ow i 4.Using the tab key for variable completion 5.Using | (Pipe): use | to filter and manipulate command output (e.g>>show route | ?) 6.And many more… Students Industrial Work Experience Scheme (SIWES) Agboko B.A

16. CLI operational mode hierarchy Students Industrial Work Experience Scheme (SIWES) Agboko B.A

17. Configuration Mode Students Industrial Work Experience Scheme (SIWES) Agboko B.A

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