DES-3624 Series Stackable NWay Ethernet Switch User's Guide Fifth Edition (December 2001) 651S3624.055 Printed In Taiwan RECYCLABLE TABLE OF CONTENTS 0 ABOUT THIS GUIDE.........................................................................................................................................................10 CONVENTIONS ...........................................................................................................................................................................10 OVERVIEW OF THIS USER'S GUIDE.............................................................................................................................................10 1 INTRODUCTION ...............................................................................................................................................................11 FAST ETHERNET TECHNOLOGY..................................................................................................................................................11 GIGABIT ETHERNET TECHNOLOGY ............................................................................................................................................11 SWITCHING TECHNOLOGY .........................................................................................................................................................12 FEATURES ..................................................................................................................................................................................12 Ports.......................................................................................................................................................................................12 Performance features.............................................................................................................................................................13 Management ..........................................................................................................................................................................13 2 UNPACKING AND SETUP ...............................................................................................................................................15 UNPACKING ...............................................................................................................................................................................15 SETUP ........................................................................................................................................................................................15 DESKTOP OR SHELF INSTALLATION ...........................................................................................................................................15 RACK INSTALLATION .................................................................................................................................................................16 POWER ON .................................................................................................................................................................................17 Power Failure ........................................................................................................................................................................17 3 IDENTIFYING EXTERNAL COMPONENTS................................................................................................................18 FRONT PANEL ............................................................................................................................................................................18 REAR PANEL ..............................................................................................................................................................................19 SIDE PANELS..............................................................................................................................................................................19 STACK OPERATION ....................................................................................................................................................................20 OPTIONAL PLUG-IN MODULES ...................................................................................................................................................21 100BASE-FX (MT-RJ) Module ..............................................................................................................................................22 100BASE-FX (SC) Module ....................................................................................................................................................22 100BASE-TX Module.............................................................................................................................................................23 1000BASE-SX Gigabit Module..............................................................................................................................................23 1000BASE-LX Gigabit Module..............................................................................................................................................24 1000BASE-T Copper Gigabit Module ...................................................................................................................................24 LED INDICATORS ......................................................................................................................................................................25 4 CONNECTING THE SWITCH .........................................................................................................................................27 SWITCH TO END NODE ...............................................................................................................................................................27 SWITCH TO HUB OR SWITCH ......................................................................................................................................................27 10BASE-T Device ..................................................................................................................................................................28 100BASE-TX Device ..............................................................................................................................................................28 5 SWITCH MANAGEMENT CONCEPTS .........................................................................................................................29 LOCAL CONSOLE MANAGEMENT ...............................................................................................................................................29 Diagnostic (Console) Port (RS-232 DCE).............................................................................................................................29 IP ADDRESSES AND SNMP COMMUNITY NAMES ......................................................................................................................30 TRAPS ........................................................................................................................................................................................30 MIBS .........................................................................................................................................................................................31 PACKET FORWARDING ...............................................................................................................................................................31 Aging Time.............................................................................................................................................................................32 Filtering Database.................................................................................................................................................................32 SPANNING TREE ALGORITHM ....................................................................................................................................................32 STA Operation Levels ............................................................................................................................................................33 On the Bridge Level................................................................................................................................................................................ 33 On the Port Level .................................................................................................................................................................................... 33 User-Changeable STA Parameters........................................................................................................................................34 Illustration of STA..................................................................................................................................................................34 PORT TRUNKING ........................................................................................................................................................................36 VLANS & MAC-BASED BROADCAST DOMAINS.......................................................................................................................36 MAC-Based Broadcast Domains ...........................................................................................................................................37 IEEE 802.1Q VLANs..............................................................................................................................................................37 802.1Q VLAN Segmentation .................................................................................................................................................................. 38 Sharing Resources Across 802.1Q VLANs............................................................................................................................................. 38 802.1Q VLANs Spanning Multiple Switches ......................................................................................................................................... 39 VLANs Over 802.1Q-compliant Switches...................................................................................................................................... 39 Port-Based VLANs.................................................................................................................................................................40 BROADCAST STORMS.................................................................................................................................................................41 Segmenting Broadcast Domains............................................................................................................................................41 Eliminating Broadcast Storms ...............................................................................................................................................41 6 USING THE CONSOLE INTERFACE ............................................................................................................................42 SETTING UP A CONSOLE............................................................................................................................................................42 CONNECTING TO THE SWITCH USING TELNET............................................................................................................................43 CONSOLE USAGE CONVENTIONS................................................................................................................................................43 FIRST TIME CONNECTING TO THE SWITCH ................................................................................................................................43 User Accounts Management ..................................................................................................................................................45 Save Changes.........................................................................................................................................................................46 LOGIN ON THE SWITCH CONSOLE BY REGISTERED USERS........................................................................................................46 Create/Modify User Accounts................................................................................................................................................................. 47 User Accounts Control Table...................................... ...