A TFTP or XMODEM software download is invoked via the console menus. A TFTP download can also be invoked via SNMP or Web-based manager.

Non-volatile Parameter Storage

All important operating parameters, such as management data and port configurations, are stored in non-volatile Flash memory. These values are retained when the hub experiences power interruptions or is powered down for normal maintenance.

Configuration and Management Interfaces

The ELH100-12/24TX hub, or attached stack, can be managed using any of the following methods:

Serial console, out-of-band or in-band

An RS-232 connection, using a DB-9 connector, is included on the Agent Module for system management. Serial console management can be performed out-of-band using a terminal or computer running communications software. You can connect directly to the RS-232 port on the Agent Module, or make a connection via a modem. See Chapter 3, ELH100-12/24TX User Interface, for information on managing the ELH100-12/24TX hub (or stack) via the serial console.

You can also make an in-band connection to the RS-232 port on the Agent Module with SLIP protocol. Using this kind of connection, you can manage the system via any of the methods listed below.

Telnet, in-band (over Ethernet)

The hub supports management through a Telnet connection using the TCP/IP protocols. Telnet is performed using a terminal or computer running communications software. See Chapter 3, ELH100-12/24TX User Interface, for information on managing the system via Telnet. Global user name and password protection for changing the operating parameters of the hub is provided.

Web-based network manager, in-band

The system can be managed over HTTP protocol with a Web browser (Internet Explorer 3.0 or above, or Netscape Navigator 3.0 or above). Standard agent MIBs embedded in the hub provide basic SNMP management through an embedded graphic interface.

SNMP-based network manager, in-band

The system can also be managed using SNMP, the most common protocol used today for network management. Standard agent MIBs embedded in the hub provide basic SNMP management through industry-standard SNMP applications.

Management security protection is provided based on SNMP community names. See Chapter 6, SNMP Management, for more information.

8 Product Overview

ELH100-12/24TX

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Cabletron Systems ELH100 manual Non-volatile Parameter Storage, Configuration and Management Interfaces

ELH100 specifications

The Cabletron Systems ELH100 is a robust and innovative networking device that was designed for use in high-performance network environments. Introduced during the late 1990s, the ELH100 served as a valuable solution for enterprises looking to enhance their network efficiency and reliability. This device is particularly notable for its combination of advanced features, cutting-edge technologies, and versatile characteristics.

One of the main features of the ELH100 is its ability to support multiple Ethernet standards, including 10BASE-T and 100BASE-TX, making it highly flexible for diverse networking needs. This multi-standard support provided businesses with the ability to upgrade their networking infrastructure without entirely replacing existing equipment, allowing for a more cost-effective transition to higher-speed connections.

The ELH100 is equipped with a variety of ports, enabling it to connect to various devices seamlessly. Its design includes multiple media access control (MAC) addresses and the capability of supporting a sizable number of simultaneous connections. This design ensures optimal performance, even in environments requiring high data throughput.

In terms of technology, the ELH100 utilizes a pioneering architecture for load balancing and traffic management. This technology ensures that network bandwidth is used efficiently, minimizing bottlenecks and latency while maximizing throughput. Additionally, the device features hardware-based switching, which accelerates data transmission within the network, providing a competitive edge in applications that demand high-speed access.

Another defining characteristic of the ELH100 is its management capabilities. The device supports remote management via simple network management protocol (SNMP), allowing network administrators to monitor performance, configure settings, and troubleshoot issues from a central location. Such features not only enhance usability but also contribute to improved network uptime.

The ELH100 also emphasizes security features, including VLAN support, which permits the segmentation of network traffic. This capability helps in isolating different segments of the network, increasing both performance and security by preventing unauthorized access to sensitive data.

In summary, the Cabletron Systems ELH100 is a noteworthy networking solution that amalgamates versatility, efficiency, and advanced technology, making it a mainstay in the networking devices market during the era of its popularity. Its multi-standard support, hardware-based switching, management features, and security protocols underscore its capability to meet the evolving demands of enterprise networking environments.