1000BASE-LX Fiber Module ................................................. 24
GBIC Two-Port Module ......................................................... 24
LED Indicators ........................................................................ 25
Connecting The Switch............................................................... 26
Switch to End Node ................................................................. 26
Switch to Hub or Switch .......................................................... 27
10BASE-T Device .................................................................. 28
100BASE-TX Device.............................................................. 29
Switch Management and Operating Concepts............................ 30
Local Console Management ..................................................... 31
Diagnostic (console) port (RS-232 DCE)................................ 31
IP Addresses and SNMP Community Names .......................... 32
Traps........................................................................................ 34
MIBs ........................................................................................ 36
SNMP ...................................................................................... 37
Authentication ...................................................................... 38
Flow Control .............................................
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Packet Forwarding................................................................... 38
MAC Address Aging Time ..................................................... 38
Filtering................................................................................... 39
Spanning Tree Protocol ........................................................... 41
STP Operation Levels ........................................................... 42
Bridge Protocol Data Units................................................... 44
Creating a Stable STP Topology............................................ 45
STP Port States .................................................................... 45
User-Changeable STA Parameters ....................................... 48
Illustration of STP ................................................................ 49
Port Aggregation...................................................................... 53
Setting Up IP Interfaces VLANs ............................................. 55
Notes About VLANs on the DES-3326 .................................. 56
IEEE 802.1Q VLANs ............................................................. 57
802.1Q VLAN Packet Forwarding ......................................... 58
802.1Q VLAN Tags................................................................ 60
Port VLAN ID ....................................................................... 62
