UPGRADING THE SOFTWARE IMAGE

6 ONLY

An image-only upgrade is an upgrade that replaces the NETBuilder bridge/router or PathBuilder S5xx series switch boot image file but does not upgrade any configuration files. You can perform an image-only upgrade in the following cases:

■You are installing a patch release for your current version of software.

■You are upgrading to a different package of the same version.

■Your new version does not require updated configuration files (for example, 10.1 to 10.3).

■You are upgrading a PathBuilder S5xx series switch.

You can upgrade:

■Using Upgrade Link

■Using the Command-Line Utilities

■Using the Enterprise OS User Interface

You can also use Transcend Enterprise Manager or Transcend Network Control

Services to perform an image-only upgrade. See the guide that came with

Transcend for more information.

3Com recommends using the utilities instead of the Enterprise OS user interface. The utilities automatically back up the software and perform all the necessary copying and boot source settings automatically.

Preparing for the Upgrade

If you are using Upgrade Link or the command-line, confirm the following items:

■You have installed the utilities according to Chapter 2.

■You have set the path for the utilities (UNIX only). If you have not set the path, complete the following step for your UNIX shell:

■For a C-shell installation, add the contents of the following file to the .cshrc file for each user you want to have access to the utilities, including root:

/usr/3Com/common/data/.login-bcm

Or you can enter the path after every logon:

source /usr/3Com/common/data/.login-bcm

■For a Bourne shell installation, add the contents of the following file to the

.profile file for each user you want to have access to the utilities, including root:

/usr/3Com/common/data/.profile-bcm

Or you can enter the path after every logon:

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3Com ENTERPRISE OS 11.3 manual Upgrading the Software Image Only, Preparing for the Upgrade
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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.
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