Working and Certified Directories

OmniSwitch 7700/7800 switches are shipped with 32 MB of flash memory. This memory is used to store files, including boot and image files, that are used for switch operations.

The /flash directory contains two subdirectories: /working and /certified. These directories work together to provide the image rollback resiliency feature. Image rollback allows the switch to return to a prior “last known good” version of soft- ware in the event of a system software problem.

Working Directory

Working Directory

Intended for: Files that are being configured and tested. Once these files are considered valid and reliable, they can be copied to the Certified directory.

On reload: If the Working and Certified directories are identical, the switch will automatically run from software in this directory. If the two directories are not identical, you can instruct the switch to run from the Working directory by issuing the reload working command.

Saving changes: You can save config- uration changes to the Working directory via the write memory command.

The /flash/working directory is intended for software that is still being configured for your network. Changes made while

configuring your switch are saved to the boot.cfg file in the /flash/working directory.

Once the /flash/working directory’s configuration and image files are road-tested and considered valid and reliable for your network, they can be copied to the /flash/certified directory.

Certified Directory

Certified Directory

Intended for: Reliable, Tested configuration and image files. The switch will roll back to this software in the event of a system software error.

On reload: By default, the switch will use the software in this directory if there are any differences between the Working and Certified directories.

Saving changes: You cannot save config- uration changes to the Certified directory. To save your changes, be sure that your switch is operating from the Working directory.

The software in the /flash/certified directory should be treated as the “gold master” for the switch. When you place configu- ration and image files in this directory, you are “certifying” them as tested and reliable. If the switch is running from the /flash/working directory and experiences a software problem, it will “roll back” to the last known good software in the /flash/certified directory on the next reboot.

38 Files and Directories

March 2005

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Alcatel Carrier Internetworking Solutions 7800, 7700 manual Working and Certified Directories

7700, 7800 specifications

Alcatel Carrier Internetworking Solutions, particularly the 7800 and 7700 series, are pivotal in the realm of high-performance networking. These solutions are engineered to meet the demands of modern telecommunications, featuring cutting-edge technology and robust capabilities designed for service providers and enterprises alike.

The Alcatel 7800 series is particularly noted for its scalability and flexibility. This platform excels in providing high-capacity routing, enabling service providers to manage increasing data traffic efficiently. It supports advanced routing protocols and offers comprehensive service features, making it ideal for deploying next-generation IP services. This series is built to facilitate seamless multimedia applications, ensuring that users experience high-quality voice, video, and data services.

In addition to its performance, the 7800 series is equipped with advanced security mechanisms, such as encryption and access control, to safeguard data integrity. This is crucial in an environment where cyber threats are on the rise, and service providers must protect their networks from potential attacks.

On the other hand, the Alcatel 7700 series emphasizes cost efficiency without compromising performance. This cost-effective solution allows for intelligent traffic management, enabling operators to optimize bandwidth utilization effectively. The 7700 series integrates Quality of Service (QoS) features, ensuring that critical applications receive the necessary bandwidth and priority. It allows for tailored service levels, crucial for businesses looking to provide tiered services to their customers.

Both the 7800 and 7700 series leverage advanced technologies such as Software-Defined Networking (SDN) and Network Functions Virtualization (NFV). These technologies bring greater agility and operational efficiency, allowing networks to be more responsive to changing demands. With SDN, operators can automate network management tasks, significantly reducing manual intervention and streamlining operations.

Overall, the Alcatel Carrier Internetworking Solutions 7800 and 7700 series provide a comprehensive suite of features that cater to the evolving needs of telecommunications operators. With their robust architecture, advanced routing capabilities, and emphasis on security and efficiency, these solutions are designed to empower service providers in delivering reliable, high-quality services to their customers in an increasingly connected world.