3Com 1000 User Manual

Page 5

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How VLANs Ease Change and Movement 5-2

How VLANs Control Broadcast Traffic 5-2

How VLANs Provide Extra Security 5-2

An Example 5-2

VLANs and the Switch 5-3

The Default VLAN and Moving Ports From the Default

VLAN 5-3

Connecting VLANs to a Router 5-3

Connecting Common VLANs Between Switch Units

5-3

Using AutoSelect VLAN Mode 5-3

Using Non-routable Protocols 5-5

Using Unique MAC Addresses 5-5

Extending VLANs into an ATM Network 5-5

VLAN Configurations 5-5

Example 1 5-5

Example 2 5-6

Example 3 5-7

Setting Up VLANs on the Switch 5-8

Assigning a Port to a VLAN When Using Port VLAN

Mode 5-10

Specifying a Backbone Port 5-10

Specifying that a Port is a VLT Port 5-10

Setting Up VLANs Using AutoSelect VLAN Mode 5-11

Specifying Information About the VLAN Server 5-11

Specifying AutoSelect VLAN Mode 5-11

Spanning Tree Protocol 5-12

What is STP? 5-12

How STP Works 5-14

STP Initialization 5-14

STP Stabilization 5-14

STP Reconfiguration 5-14

An Example 5-15

STP Configurations 5-16

Enabling STP on the Switch 5-17

Configuring STP on the Switch 5-18

Configuring the STP Parameters of VLANs 5-18

Configuring the STP Parameters of Ports 5-20

RMON 5-22

What is RMON? 5-22

About the RMON Groups 5-23

Statistics 5-23

History 5-23

Alarms 5-23

Hosts 5-23

Hosts Top N 5-23

Matrix 5-24

Filter 5-24

Capture 5-24

Events 5-24

Benefits of RMON 5-25

How RMON Improves Your Efficiency 5-25

How RMON Allows Proactive Management 5-25

How RMON Reduces the Traffic Load 5-25

RMON and the Switch 5-26

RMON Features of the Switch 5-26

About Alarm Actions 5-28

About Default Alarm Settings 5-29

About the Audit Log 5-29

6

S

TATUS

M

ONITORING

AND

S

TATISTICS

Summary Statistics 6-2

Port Statistics 6-3

Port Traffic Statistics 6-4

Port Error Analysis 6-6

Status Monitoring 6-8

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