Table of Contents 
 
Preface....................................................................................................................................................ix 
Intended Readers .................................................................................................................................................................x 
Typographical Conventions............................................................................................................................................................... x 
Notes, Notices, and Cautions...............................................................................................................................................x 
Safety Instructions..............................................................................................................................................................xi 
Safety Cautions................................................................................................................................................................................. xi 
General Precautions for Rack-Mountable Products ......................................................................................................................... xii 
Protecting Against Electrostatic Discharge..................................................................................................................................... xiii 
Introduction............................................................................................................................................ 1 
Switch Description ..............................................................................................................................................................1 
Features.............................................................................................................................................................................................. 1 
Ethernet Technology ...........................................................................................................................................................3 
Fast Ethernet...................................................................................................................................................................................... 3 
Gigabit Ethernet Technology............................................................................................................................................................. 3 
Switching Technology ....................................................................................................................................................................... 3 
Front-Panel Components and LED Indicators ................................................................................................................................... 4 
Rear Panel Description ...................................................................................................................................................................... 6 
Side Panel Description....................................................................................................................................................................... 6 
Installation .............................................................................................................................................. 7 
Package Contents............................................................................................................................................................................... 7 
Before You Connect to the Network.................................................................................................................................................. 7 
Installing the Switch without the Rack .............................................................................................................................................. 8 
Installing the Switch in a Rack .......................................................................................................................................................... 8 
Mounting the Switch in a Standard 19" Rack............................................................................................................................... 8 
Power On...................................................................................................................................................................................... 8 
The Optional Modules ....................................................................................................................................................................... 9 
Connecting the Switch ......................................................................................................................... 12 
Switch to End Node......................................................................................................................................................................... 12 
Switch to Hub or Switch.................................................................................................................................................................. 13 
The DES-3010F/FL/G, DES-3018 or DES-3026 as a Network Backbone................................................................................. 14 
Introduction to Switch Management.................................................................................................. 15 
Management Options ........................................................................................................................................................15 
Web-based Management Interface................................................................................................................................................... 15 
SNMP-Based Management.............................................................................................................................................................. 15 
Command Line Console Interface through the Serial Port .............................................................................................................. 15 
Connecting the Console Port (RS-232 DCE).............................................................................................................................. 15 
First Time Connecting to the Switch ............................................................................................................................................... 17 
Password Protection......................................................................................................................................................................... 19