Table of Contents
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About This Guide .................................................................................................................................. 1
Overview of this User's Guide ............................................................................................................. 1
Introduction .......................................................................................................................................... 2
Features ............................................................................................................................................. 2
Ports ................................................................................................................................................ 2
Performance Features......................................................................................................................... 2
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
LED Indicators ................................................................................................................................... 8
Connecting The Switch.......................................................................................................................... 9
Switch to End Node ............................................................................................................................ 9
Switch to Hub or Switch ..................................................................................................................... 9
Switch Management and Operating Concepts ..................................................................................... 11
Local Console Management .............................................................................................................. 11
Diagnostic (console) port (RS-232 DCE).......................................................................................... 11
IP Addresses and SNMP Community Names ..................................................................................... 12
Traps ................................................................................................................................................ 13
MIBs................................................................................................................................................. 14
SNMP ............................................................................................................................................... 14
Authentication ............................................................................................................................... 15
Packet Forwarding ............................................................................................................................ 15
MAC Address Aging Time ............................................................................................................... 15
Filtering............................................................................................................................................ 15
Spanning Tree Protocol ..................................................................................................................... 16
STP Operation Levels ..................................................................................................................... 16
Bridge Protocol Data Units ............................................................................................................. 17
Creating a Stable STP Topology ...................................................................................................... 18
STP Port States .............................................................................................................................. 18
User-Changeable STP Parameters .................................................................................................. 20
Illustration of STP .......................................................................................................................... 20
VLANs .............................................................................................................................................. 22
Notes About VLANs on the DGS-3224TG........................................................................................ 22
IEEE 802.1Q VLANs....................................................................................................................... 22
802.1Q VLAN Packet Forwarding ................................................................................................... 23
802.1Q VLAN Tags ......................................................................................................................... 24
Port VLAN ID.................................................................................................................................. 25
Tagging and Untagging................................................................................................................... 26
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Table of Contents
Troubleshooting
