Contents

Trunking Overview

13-16

 

 

 

 

 

Encapsulation Types 13-18

 

 

 

 

IEEE 802.1Q Configuration Considerations

13-19

 

Default Layer 2 Ethernet Interface VLAN Configuration

13-19

Configuring an Ethernet Interface as a Trunk Port 13-19

 

Interaction with Other Features

13-20

 

 

Configuring a Trunk Port

13-20

 

 

 

 

Defining the Allowed VLANs on a Trunk

13-21

 

Changing the Pruning-Eligible List

13-22

 

 

Configuring the Native VLAN for Untagged Traffic

13-23

Configuring Trunk Ports for Load Sharing

13-24

 

Load Sharing Using STP Port Priorities 13-24

 

Load Sharing Using STP Path Cost

13-26

 

 

Configuring VMPS 13-28

 

 

 

 

 

 

Understanding VMPS

13-28

 

 

 

 

 

Dynamic-Access Port VLAN Membership

13-29

 

Default VMPS Client Configuration

13-29

 

 

VMPS Configuration Guidelines

13-29

 

 

 

Configuring the VMPS Client

13-30

 

 

 

 

Entering the IP Address of the VMPS

13-30

Configuring Dynamic-Access Ports on VMPS Clients 13-31

Reconfirming VLAN Memberships 13-31

Changing the Reconfirmation Interval

13-32

Changing the Retry Count 13-32

 

 

Monitoring the VMPS

13-33

 

Troubleshooting Dynamic-Access Port VLAN Membership 13-33

 

VMPS Configuration Example 13-33

 

Configuring VTP

 

 

 

C H A P T E R 14

14-1

 

 

 

Understanding VTP

14-1

 

 

The VTP Domain

14-2

 

VTP Modes

14-3

 

 

VTP Advertisements

14-3

 

VTP Version 2

14-4

 

 

VTP Pruning

14-4

 

 

VTP and Switch Stacks

14-6

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

 

xiv

OL-9775-02

 

 

 

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Cisco Systems 3750E manual Encapsulation Types, Xiv