Enterasys Networks 802.1Q - Manual (Page 5)

Contents iii
Contents
Figures ............................................................................................................................................ v
Tables..............................................................................................................................................vi
PREFACE
Using This Guide............................................................................................................vii
Structure of This Guide ..................................................................................................vii
Related Documents....................................................................................................... viii
Document Conventions................................................................................................. viii
1 1.1 Defining VLANs............................................................................................... 1-1
1.2 Types of VLANs .............................................................................................. 1-2
1.2.1
802.1Q VLANs ................................................................................ 1-3
1.2.2 SecureFast VLANs ......................................................................... 1-3
1.2.3 Other VLAN Strategies ................................................................... 1-3
1.3 Benefits and Restrictions ................................................................................ 1-3
1.4 VLAN Terms.................................................................................................... 1-4
1.5 Getting Help .................................................................................................... 1-6
2 2.1 Description ...................................................................................................... 2-1
2.2 VLAN Components ......................................................................................... 2-1
2.3 Configuration Process..................................................................................... 2-2
2.3.1
Defining a VLAN ............................................................................. 2-2
2.3.2 Classifying Frames to a VLAN ........................................................ 2-2
2.3.3 Customizing the VLAN Forwarding List .......................................... 2-2
2.4 VLAN Switch Operation .................................................................................. 2-3
2.4.1
Receiving Frames from VLAN Ports ............................................... 2-4
2.4.2 Forwarding Decisions ..................................................................... 2-4
2.4.2.1
Broadcasts, Multicasts, and Unknown Unicasts.............. 2-4
2.4.2.2 Known Unicasts............................................................... 2-5
2.5 GARP Switch Operation.................................................................................. 2-5
3 3.1 Managing the Switch....................................................................................... 3-1
3.1.1
Switch Without VLANs .................................................................... 3-1
3.1.2 Switch with VLANs.......................................................................... 3-2
3.2 Summary of VLAN Local Management........................................................... 3-4
3.3 802.1Q VLAN Configuration Menu Screen ..................................................... 3-5
3.4 Device VLAN Configuration Screen ................................................................ 3-7