Cabletron Systems SmartSTACK ELH100 Installation And User Manual - 1. Product Overview
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Product Overview 1
1. PRODUCT OVERVIEW
Description
This installation and user guide describes Cabletron’s ELH100-12/24TX
Fast Ethernet hubs. These hubs provide the easiest method of upgrading
your network to Fast Ethernet. There’s no need to replace your existing
network infrastructure. Just add Cabletron’s hub to your network and
attach any 10 or 100 Mbps device to any port on the hub. These hubs
provide both a 10 Mbps segment needed for common file transfers, as
well as a 100 Mbps segment for relieving serious network congestion,
running multimedia applications, or satisfying power users.
These hubs include a wide range of configuration options. They can be
stacked together (up to 6 high) to form a dual-speed network of up to 144
ports. With a Class II rating, they can also be easily cascaded to additional
10 or 100 Mbps hubs. With an optional switch/media module, you can link
the hub’s 10 Mbps and 100 Mbps segments together to form a bridged
network, allowing traffic to pass between the segments when required.
Optional switch/media modules are also provided for 10Base-T/100Base-
TX and 100Base-FX media types. The fiber modules allow you to connect
the stack to remote locations up to 1.24 miles away (2 kilometers). Each
of these switch/media modules provide a switched connection to the
stack, breaking the two-hop count for Fast Ethernet by placing all the
devices attached to the module in a separate collision domain. The
modules operate at full wire speed with full address and frame filtering.
They automatically learn node addresses from the network and store
them in a Media Access Control (MAC) address forwarding table.
Incoming packets are then forwarded on to the stack or filtered based on
the addresses in the packet.
The optional RMON/SNMP/Web Agent Module provides a broad range of
management options. It includes a standards-compliant Simple Network
Management Protocol (SNMP) agent. The SNMP agent allows network
management station applications to collect and present status and
performance information about the stack, as well as providing the ability
to configure and control functions on the stack. The module also supports
Remote Monitoring (RMON) for Statistics, History, Alarm and Event
groups (Groups 1-3, 9).
Network management can be performed in-band using TCP/IP, Telnet, or
via a SLIP connection to the serial console port on the Agent Module. This
module also includes a built-in Web agent that provides management
access via common http browsers such as Netscape Navigator and
Microsoft’s Internet Explorer. In addition, the console port allows out-of-
band management using a PC, terminal, or modem connection.