26CHAPTER 4: UPGRADING USING THE NETBUILDER UPGRADE LINK APPLICATION

Minimal disk storage requirements depend on the number of different software versions that are stored on the disk drive. Calculate:

6 MB for each version of the NETBuilder II bridge/router or PathBuilder switch image

4 MB for each version of the SuperStack II, SuperStack II SI, or OfficeConnect NETBuilder bridge/router image

While you must purchase one copy of software for each device, you only need to install one copy of a version of software on the NMS.

Running Upgrade Link Upgrade Link contains its own web server. Client access to the web server is

Locallyavailable locally or remotely via a web browser. Running the Upgrade Link application locally means that the web browser and the web server are running on the same NMS.

To run Upgrade Link locally on a UNIX NMS, use:

UpgradeLink [-NoAuthentication] [-NoSecurity]

This command starts the NETBuilder Upgrade Server and the default browser. Two command options are available.

When NoAuthentication is specified, Upgrade Link will allow a remote client to access the server without user authentication, see “Settings Page” for a description of the available settings.

When you specify NoSecurity, Upgrade Link starts and will accept connections from all IP addresses. Otherwise, only those client IP addresses listed in the /usr/3Com/common/data/allow file will be accepted by Upgrade Link.

For security, an administrator can enter the IP addresses of only those clients who will be allowed to upgrade devices. An allow file is an ASCII text file containing the IP addresses of clients to upgrade devices. The allow file looks like the following:

129.213.100.151

129.213.100.152

139.87.172.100

To run Upgrade Link locally on a Windows NMS, click the Start menu, then choose

ProgramsRemote Upgrade UtilitiesUpgrade Link.

Your default browser is launched. On Windows, the 3Com FTP/TFTP server is also launched.

When you exit Upgrade Link, you will also exit the browser and, for Windows, the

FTP/TFTP server.

Running Upgrade Link You can access the NETBuilder Upgrade Server remotely using a browser.

Remotely

Start the NETBuilder Upgrade Server on the NMS using:

bcmnbrus <port> [-NoSecurity -NoAuthentication]

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3Com ENTERPRISE OS 11.3 manual Remotely, Programs⇒ Remote Upgrade Utilities⇒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.