19

Manual Recovery An upgrade with manual recovery (using the -m option with the bcmsysupgrade utility) formats the flash memory after backing up the current software, then copies the upgraded files to the bridge/router. If the upgrade is not successful, you must restore the software from the NMS.

If you are upgrading your hardware as well as the software, you can easily recover your old hardware if the upgrade is not successful. However, because you erased the flash memory on the new hardware, you will need to restore the original software from the NMS if you want to return the new hardware to its original state.

Table 2 lists the memory requirements for each software package on the platform you are upgrading to. If you are upgrading to an earlier version of software, see the guides that came with that version for the memory requirements.

Table 2 Version 11.2 Software Packages

 

 

 

Flash Memory Required for:

Software Package

Model

DRAM Required

Automatic Recovery

Manual Recovery

 

 

 

 

NETBuilder II with DPE:

 

 

(The standard flash memory card from 3Com

 

 

 

is 20 MB)

 

(AC) - APPN/Connection Services

DPE

All DPE modules

40 MB

20 MB

(DW) - Multiprotocol Router

DPE

ship with enough

40 MB

20 MB

DRAM for all

 

 

 

 

 

 

software packages.

 

 

(DE) - Multiprotocol Router with

DPE

All DPE modules

40 MB

20 MB

56-bit Encryption

 

ship with enough

 

 

 

 

DRAM.

 

 

(DS) - Multiprotocol Router with

DPE

 

40 MB

20 MB

128-bit Encryption

 

 

 

 

 

 

 

 

 

SuperStack II NETBuilder Token Ring:

 

 

 

 

(TE) - Multiprotocol Router with

327, 527

12 MB

8 MB

4 MB

Encryption

 

 

 

 

 

 

 

 

 

SuperStack II NETBuilder SI:

 

 

 

 

(NW) - IP/IPX/AT Router

432, 442, 452, 462 All SuperStack II NETBuilder SI bridge/routers ship with enough

 

532, 542, 552, 562 DRAM (16 MB) and flash memory (8 MB) for automatic recovery.

(BF) - Boundary Router

433, 443, 453, 463

 

 

 

 

533, 543, 553, 563

 

 

 

(CF) - Multiprotocol Router

437, 447, 457, 467

 

 

 

 

537, 547, 557, 567

 

 

 

(AX) - APPN/Connection Services

438, 448, 458, 468

 

 

 

 

538, 548, 558, 568

 

 

 

(NE) - IP/IPX/AT Router with 56-bit

432, 442, 452, 462

 

 

 

Encryption

532, 542, 552, 562

 

 

 

(NS) - IP/IPX/AT Router with 128-bit

432, 442, 452, 462

 

 

 

Encryption

532, 542, 552, 562

 

 

 

(CE) - Multiprotocol Router with

437, 447, 457, 467

 

 

 

56-bit Encryption

537, 547, 557, 567

 

 

 

(CS) Multiprotocol Router with

437, 447, 457, 467

 

 

 

128-bit Encryption

537, 547, 557, 567

 

 

 

 

 

 

 

 

Page 19
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3Com ENTERPRISE OS 11.3 manual Flash Memory Required for, SuperStack II NETBuilder Token Ring, SuperStack II NETBuilder SI

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.