- CABLETRON Systems, Inc, SmartSwitch User's Guide 2E42-27, 2E42-27R, 2E43-27, 2E43-27R

2E4X-27 Features
2E42-27/2E42-27R/2E43-27/2E43-27R User’s Guide 1-3
A 24-port high-speed workgroup switch with two optional ports for
Fast Ethernet Interface Modules providing high speed uplinks to
100 Mbps Fast Ethernet technologies and one optional port for a High
Speed Interface Module (HSIM). The HSIM provides additional
connectivity to various networking technologies.
Full Duplex Switched Ethernet (FDSE) support for 20 Mbps or
200 Mbps Fast Ethernet links to bandwidth intensive users/servers.
SmartTrunk, which allows the user to logically group interfaces on the
2E4X-27 via Local Management to provide a higher aggregate
bandwidth between Cabletron Systems devices that support the
SmartTrunk feature.
Runtime IP Address Discovery, which allows the 2E4X-27 to send out
Reverse Address Resolution (RARP) and Bootstrap Protocol (BootP)
requests to determine its Internet Protocol (IP) address.
Manageable using Simple Network Management Protocol (SNMP)
and Remote Monitoring (RMON).
Support for traditional switching services and with the proper
software, Cabletron Systems SecureFast Switching Virtual Network
technology.
Ability to link existing stackable or third party hubs to 100 Mbps Fast
Ethernet backbones.
IEEE 802.3 compatibility with support for IEEE 802.1D and DEC
Spanning Tree Algorithms.
LANVIEW Diagnostic LEDs.
Available with two power supplies (2E42-27R and 2E43-27R only).