Chapter 5: Local Management

Application (Toggle)

Allows the user to set the application that the COM port will support. The field toggles between LM (Local Management) and UPS (Uninterruptible Power Supply). The default is LM.

The UPS setting allows the COM port to be used to monitor an American Power Conversion (APC) Uninterruptible Power Supply (UPS).

The baud rate setting for LM is automatically sensed. For UPS, the baud rate is automatically set to 2400.

For details about how to configure the COM port for various applications, refer to Section 5.7.10.

Clear NVRAM (Toggle)

Allows the user to reset NVRAM to the factory default settings. All user-entered parameters, such as IP address and Community Names, are then replaced with 2E4X-27R default configuration settings. For details, refer to Section 5.7.11.

IP Fragmentation (Toggle)

Allows the user to enable or disable IP Fragmentation. The default setting for this is field is ENABLED. If the 2E4X-27R is to be bridged to an FDDI ring via an HSIM-F6, IP Fragmentation must be enabled. If IP Fragmentation is disabled, all FDDI frames that exceed the maximum Ethernet frame size are discarded. For details on enabling IP Fragmentation, refer to Section 5.7.12.

5.7.1Setting the IP Address

To set the IP address, perform the following steps:

1.Use the arrow keys to highlight the IP Address field.

2.Enter the IP address into this field using Dotted Decimal Notation (DDN) format.

For example: 134.141.79.120

3.Press ENTER. If the IP address is a valid format, the cursor returns to the beginning of the IP address field. If the entry is not valid, the screen displays the message “INVALID IP ADDRESS OR FORMAT ENTERED”. Local Management does not alter the current value and refreshes the IP address field with the previous value.

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2E48-27R/2E49-27R User’s Guide

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Cabletron Systems 2E48-27R, 2E49-27R manual Setting the IP Address

2E49-27R, 2E48-27R specifications

Cabletron Systems 2E48-27R and 2E49-27R are powerful network switching devices that are designed to enhance the performance and reliability of network infrastructures. These devices play a critical role in ensuring seamless data transmission, making them essential for both enterprise environments and larger network setups.

One of the standout features of the Cabletron Systems 2E48-27R and 2E49-27R is their high-density design. The 2E48-27R model is equipped with 48 Ethernet ports, while the 2E49-27R includes 48 Ethernet ports along with an additional uplink capability that enhances flexibility in network connections. This high port density allows organizations to efficiently manage and connect multiple devices without taking up excessive space, making the devices ideal for environments where space is a premium.

Both models incorporate advanced switching technologies that support high throughput and low latency. This ensures that data packets are processed quickly and accurately, providing users with consistent performance and minimal delays. They also support various networking standards, including IEEE 802.3, ensuring compatibility with a wide range of devices and systems.

Another key characteristic of the 2E48-27R and 2E49-27R is their support for VLANs (Virtual Local Area Networks). This functionality allows network administrators to segment network traffic for better organization and security. By isolating different types of traffic, VLANs help to improve performance and reduce congestion, making it easier to manage network resources effectively.

In terms of management capabilities, both models offer robust features through SNMP (Simple Network Management Protocol). This allows for centralized network monitoring and management, giving administrators the tools they need to troubleshoot issues quickly and maintain optimal network performance. Additionally, the devices support easy upgrades and configuration changes, which can be crucial for adapting to evolving networking needs.

Security is another paramount feature included in the Cabletron Systems 2E48-27R and 2E49-27R. They offer access control lists (ACLs) and other security measures that help protect the network from unauthorized access and potential threats.

In summary, Cabletron Systems 2E48-27R and 2E49-27R are robust networking devices that combine high-density port configurations, advanced switching technologies, VLAN support, and comprehensive management capabilities. These features make them well-suited for high-demand network environments, ensuring efficient and secure data transmission while maximizing organizational performance.