Preface ..............................................................................................................................................vii

Intended Readers...............................................................................................................................vii

Notes, Notices, and Cautions ..........................................................................................................vii

Safety Instructions .........................................................................................................................viii

Protecting Against Electrostatic Discharge ....................................................................................... x

Introduction .......................................................................................................................................... 1

Fast Ethernet Technology ................................................................................................................... 1

Gigabit Ethernet Technology............................................................................................................... 1

Switch Stacking .................................................................................................................................. 1

Features ............................................................................................................................................. 2

Ports................................................................................................................................................... 2

Traffic Classification and Prioritization ............................................................................................... 3

Management....................................................................................................................................... 3

Unpacking and Setup............................................................................................................................ 4

Unpacking .......................................................................................................................................... 4

Installation ......................................................................................................................................... 4

Desktop or Shelf Installation ............................................................................................................ 4

Rack Installation .............................................................................................................................. 5

Power on............................................................................................................................................. 6

Power Failure ................................................................................................................................... 6

Identifying External Components .......................................................................................................... 7

Front Panel......................................................................................................................................... 7

Rear Panel .......................................................................................................................................... 7

Side Panels ......................................................................................................................................... 8

Gigabit Combo Ports........................................................................................................................... 8

LED Indicators ................................................................................................................................... 8

Connecting the Switch ........................................................................................................................ 10

Switch to End Node .......................................................................................................................... 10

Switch to Hub or Switch ................................................................................................................... 10

10BASE-T Device ........................................................................................................................... 11

100BASE-TX Device ....................................................................................................................... 11

Stacking vs. Standalone Operation ................................................................................................... 11

Managing Switch Stacks ................................................................................................................... 12

Changes to Switch Stack Structure ................................................................................................ 13

Convert a Standalone Switch to a Stacked Switch .......................................................................... 13

Add a Switch to a Stack ................................................................................................................. 14

Swap a Master from a Stack........................................................................................................... 15

Stacking with DGS-3312SR ........................................................................................................... 16

Introduction to Switch Management.................................................................................................... 17

Management Options........................................................................................................................ 17

Web-based Management Interface .................................................................................................... 17

SNMP-Based Management................................................................................................................ 17

Command Line Console Interface Through the Serial Port ................................................................ 17

Connecting the Console Port (RS-232 DCE).................................................................................... 18

First Time Connecting to The Switch ................................................................................................ 19

Password Protection ......................................................................................................................... 20

SNMP Settings .................................................................................................................................. 21

Traps ............................................................................................................................................. 22

D-Link DES-3250TG Standalone Layer 2 Switch

iii