Cabletron Systems SmartSTACK ELH100 Installation And User Manual

Contents

9033060 Product Overview 11. PRODUCT OVERVIEWDescriptionThis installation and user guide describes Cabletron’s ELH100-12/24TXFast Ethernet hubs. These hubs provide the easiest method of upgradingyour network to Fast Ethernet. There’s no need to replace your existingnetwork infrastructure. Just add Cabletron’s hub to your network andattach any 10 or 100 Mbps device to any port on the hub. These hubsprovide both a 10 Mbps segment needed for common file transfers, aswell 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 bestacked together (up to 6 high) to form a dual-speed network of up to 144ports. With a Class II rating, they can also be easily cascaded to additional10 or 100 Mbps hubs. With an optional switch/media module, you can linkthe hub’s 10 Mbps and 100 Mbps segments together to form a bridgednetwork, 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 connectthe stack to remote locations up to 1.24 miles away (2 kilometers). Eachof these switch/media modules provide a switched connection to thestack, breaking the two-hop count for Fast Ethernet by placing all thedevices attached to the module in a separate collision domain. Themodules operate at full wire speed with full address and frame filtering.They automatically learn node addresses from the network and storethem in a Media Access Control (MAC) address forwarding table.Incoming packets are then forwarded on to the stack or filtered based onthe addresses in the packet.The optional RMON/SNMP/Web Agent Module provides a broad range ofmanagement options. It includes a standards-compliant Simple NetworkManagement Protocol (SNMP) agent. The SNMP agent allows networkmanagement station applications to collect and present status andperformance information about the stack, as well as providing the abilityto configure and control functions on the stack. The module also supportsRemote Monitoring (RMON) for Statistics, History, Alarm and Eventgroups (Groups 1-3, 9).Network management can be performed in-band using TCP/IP, Telnet, orvia a SLIP connection to the serial console port on the Agent Module. Thismodule also includes a built-in Web agent that provides managementaccess via common http browsers such as Netscape Navigator andMicrosoft’s Internet Explorer. In addition, the console port allows out-of-band management using a PC, terminal, or modem connection.