Cisco Systems 3750E manual Vlan ID, 13-5

Chapter 13 Configuring VLANs

Configuring Normal-Range VLANs

Caution You can cause inconsistency in the VLAN database if you attempt to manually delete the vlan.dat file. If you want to modify the VLAN configuration, use the commands described in these sections and in the command reference for this release. To change the VTP configuration, see Chapter 14, “Configuring VTP.”

You use the interface configuration mode to define the port membership mode and to add and remove ports from VLANs. The results of these commands are written to the running-configuration file, and you can display the file by entering the show running-configprivileged EXEC command.

You can set these parameters when you create a new normal-range VLAN or modify an existing VLAN in the VLAN database:

•VLAN ID

•VLAN name

•VLAN type (Ethernet, Fiber Distributed Data Interface [FDDI], FDDI network entity title [NET], TrBRF, or TrCRF, Token Ring, Token Ring-Net)

•VLAN state (active or suspended)

•Maximum transmission unit (MTU) for the VLAN

•Security Association Identifier (SAID)

•Bridge identification number for TrBRF VLANs

•Ring number for FDDI and TrCRF VLANs

•Parent VLAN number for TrCRF VLANs

•Spanning Tree Protocol (STP) type for TrCRF VLANs

•VLAN number to use when translating from one VLAN type to another

Note This section does not provide configuration details for most of these parameters. For complete information on the commands and parameters that control VLAN configuration, see the command reference for this release.

These sections contain normal-range VLAN configuration information:

•Token Ring VLANs, page 13-6

•Normal-Range VLAN Configuration Guidelines, page 13-6

•VLAN Configuration Mode Options, page 13-7

•Saving VLAN Configuration, page 13-7

•Default Ethernet VLAN Configuration, page 13-8

•Creating or Modifying an Ethernet VLAN, page 13-9

•Deleting a VLAN, page 13-10

•Assigning Static-Access Ports to a VLAN, page 13-11

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

OL-9775-02 13-5