56CHAPTER 6: UPGRADING THE SOFTWARE IMAGE ONLY

7Click on the Advanced button if you want to customize the upgrade process, that is you do not want to perform all of the upgrade at this time.

The Advanced Dialog box appears.

8Click New Hardware if you are replacing your bridge/router with a new system. For example, click New Hardware if you are replacing the CEC module with a DPE module.

You cannot upgrade to a different platform. For example, you can only upgrade an OfficeConnect bridge/router to an OfficeConnect bridge/router. You cannot upgrade a SuperStack II NETBuilder bridge/router to a SuperStack II NETBuilder SI bridge/router. The only exception is an upgrade from a NETBuilder II CEC module to a DPE module.

9If you want to alter the Reboot Timeout, enter a new number in the box. The default setting is appropriate for most networks.

10Click the check box for each of the stages you want to complete in the current operation.

11Click OK.

12Click Apply to begin the upgrade. The Status page appears.

13If you are performing a hardware upgrade, replacing a CEC module with a DPE module for example, a message to replace the hardware appears after the software has been backed up to the NMS. Replace the hardware at this time.

14When the upgrade is complete, the bridge/router reboots from the new software. If the boot is not successful:

For automatic recovery, the bridge/router reboots from the old software.

For manual recovery, you must configure the bridge/router at the local console to reestablish IP connectivity. Once connectivity is established, you can restore the software to return the bridge/router to a preupgrade state. See Chapter 7 for the procedure to restore connectivity and the software.

15Click Home then Exit to exit Upgrade Link.

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3Com ENTERPRISE OS 11.3 manual Click Home then Exit to exit Upgrade Link

ENTERPRISE OS 11.3 specifications

3Com Enterprise OS 11.3 is a robust network operating system designed specifically for enterprise-level applications, offering a comprehensive suite of features and technologies that enhance network performance, reliability, and security. Engineered for the needs of large organizations, this operating system integrates advanced functionalities that ensure efficient management of network resources.

One of the key features of 3Com Enterprise OS 11.3 is its enhanced routing capabilities. It supports dynamic routing protocols like OSPF and RIP, ensuring optimal path selection and efficient use of network bandwidth. This enables seamless communication across multiple network segments, reducing latency and improving overall system responsiveness.

Another significant characteristic of this OS is its powerful network management tools. The built-in management functionalities provide administrators with an intuitive interface to monitor, configure, and troubleshoot network devices in real time. With features like SNMP (Simple Network Management Protocol) support, network visibility is improved, allowing for efficient performance monitoring and rapid response to potential issues.

Security is a critical focus for 3Com Enterprise OS 11.3, which includes comprehensive measures such as access control lists (ACLs), robust authentication methods, and support for Virtual Private Networks (VPNs). These security features safeguard sensitive data and ensure that only authorized users can access network resources, mitigating the risk of unauthorized access and potential data breaches.

The operating system is also designed for scalability, accommodating the growing needs of enterprise environments. Its modular architecture allows for the integration of additional features and services without sacrificing performance. This flexibility makes it suitable for both small businesses and large enterprises, adapting to various networking requirements as they evolve.

Furthermore, 3Com Enterprise OS 11.3 facilitates quality of service (QoS) management, which prioritizes critical network traffic. By ensuring that time-sensitive applications receive the bandwidth they need, the OS enhances the performance of voice, video, and data services, which is crucial for maintaining high productivity levels.

In summary, 3Com Enterprise OS 11.3 stands out with its advanced routing capabilities, robust network management tools, enhanced security features, scalability, and QoS management. These characteristics make it an ideal solution for enterprises seeking a reliable and efficient network operating system to support their complex networking needs.