BootP

The Bootstrap Protocol (BootP) provides for the capability of passing configuration information to hosts on a TCP/IP network. Using this process, network devices do not need to be configured before they can communicate using the TCP/IP protocol suite. The ELH100-12/24TX uses BootP to automatically configure IP address information without requiring access to the console menus. BootP operation is configurable using the System Configuration Menu of the console menus, the on-board Web agent, or via SNMP.

LEDs

The port LEDs on the hub unit provide a quick and accurate display of the integrity of hub connections, indicating link and partition for each of the ports. The port LEDs on the optional switch/media modules indicate Link, Activity, Collision, Full/Half duplex mode, and speed (100M) for each of

the ports.

The 100M LED appears only on the 10Base-T/ 100Base-TX module.

Full Duplex Mode

Full duplex mode is supported on the optional switch/media modules. This mode of operation can double the throughput of port connections, by disabling the collision detection portion of the Ethernet Carrier Sense Multiple Access with Collision Detection (CSMA/CD) protocol, allowing for two-way traffic. Full duplex is configurable using the Duplex parameter in the Switch/Media Menu of the console menus or via SNMP.

Application Example

The exploding popularity of the Internet and of corporate intranets, as well as new, high-bandwidth desktop applications, are driving the demand for Fast Ethernet. The need to gradually phase in Fast Ethernet networks, without abandoning existing 10 Mbps network segments, is driving the need for economical dual-speed network solutions.

The ELH100-12/24TX hubs are ideal for gradually building up the network infrastructure needed to meet the demands of today’s data intensive applications, while retaining the use of legacy network equipment. The hubs’ low cost, high port count, and stacking capability make them attractive and affordable for dedicated 10/100 Mbps connections to the desktop. In addition, extensive features, including redundant links, port security, and micro-segmentation of bus connections, provide the management needed for the workgroup and local backbone.

10 Product Overview

ELH100-12/24TX

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Cabletron Systems ELH100 manual Application Example, BootP, LEDs, Full Duplex Mode

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.