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Catalyst 3750-X and 3560-X Switch Software Configuration Guide
OL-21521-01
Chapter 15 Configuring VLANs Configuring Normal-Range VLANs
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 15-5
• Normal-Range VLAN Configuration Guidelines, page 15-5
• Configuring Normal-Range VLANs, page 15-6
• Saving VLAN Configuration, page 15-6
• Default Ethernet VLAN Configuration, page 15-7
• Creating or Modifying an Ethernet VLAN, page 15-7
• Deleting a VLAN, page 15-8
• Assigning Static-Access Ports to a VLAN, page 15-9
Token Ring VLANs
Although the switch does not support Token Ring connections, a remote device such as a Catalyst 5000
series switch with Token Ring connections could be managed from one of the supported switches.
Switches running VTP Version 2 advertise information about these Token Ring VLANs:
• Token Ring TrBRF VLANs
• Token Ring TrCRF VLANs
For more information on configuring Token Ring VLANs, see the Catalyst 5000 Series Software
Configuration Guide.
Normal-Range VLAN Configuration Guidelines
Follow these guidelines when creating and modifying normal-range VLANs in your network:
• The switch supports 1005 VLANs in VTP client, server, and transparent modes.
• Normal-range VLANs are identified with a number between 1 and 1001. VLAN numbers 1002
through 1005 are reserved for Token Ring and FDDI VLANs.
• VLAN configuration for VLANs 1 to 1005 are always saved in the VLAN database. If the VTP mode
is transparent, VTP and VLAN configuration are also saved in the switch running configuration file.
• With VTP versions 1 and 2, the switch supports VLAN IDs 1006 through 4094 only in VTP
transparent mode (VTP disabled). These are extended-range VLANs and configuration options are
limited. Extended-range VLANs created in VTP transparent mode are not saved in the VLAN
database and are not propagated. VTP version 3 supports extended range VLAN (VLANs 1006 to
4094) database propagation. If extended VLANs are configured, you cannot convert from VTP
version 3 to version 1 or 2. See the “Configuring Extended-Range VLANs” section on page 15-10
• Before you can create a VLAN, the switch must be in VTP server mode or VTP transparent mode.
If the switch is a VTP server, you must define a VTP domain or VTP will not function.
• The switch does not support Token Ring or FDDI media. The switch does not forward FDDI,
FDDI-Net, TrCRF, or TrBRF traffic, but it does propagate the VLAN configuration through VTP.