Extended-Range Vlan Configuration Guidelines; Default Vlan Configurations; Default Ethernet Vlan Configuration - Cisco Catalyst 2960 series Configuration Manual

Configuring VLANs
Related Topics
Creating or Modifying an Ethernet VLAN
Example: Creating a VLAN Name, on page 55

Extended-Range VLAN Configuration Guidelines

VTP 3 only supports extended-range VLANs. Extended-range VLANs are VLANs with IDs from 1006 to
4094.
Follow these guidelines when creating extended-range VLANs:
• VLAN IDs in the extended range are not saved in the VLAN database and are not recognized by VTP
• You cannot include extended-range VLANs in the pruning eligible range.
• In VTP version 1 and 2, a switch must be in VTP transparent mode when you create extended-range
• For VTP version 1 or 2, you can set the VTP mode to transparent in global configuration mode. You
• STP is enabled by default on extended-range VLANs, but you can disable it by using the no spanning-tree
• Although the switch stack supports a total of 1000 (normal-range and extended-range) VLANs, the
• In a switch stack, the whole stack uses the same running configuration and saved configuration, and
Related Topics
Creating an Extended-Range VLAN, on page 52
Example: Creating an Extended-Range VLAN, on page 56

Default VLAN Configurations

Default Ethernet VLAN Configuration

The following table displays the default configuration for Ethernet VLANs.
OL-29065
unless the switch is running VTP version 3.
VLANs. If VTP mode is server or client, an error message is generated, and the extended-range VLAN
is rejected. VTP version 3 supports extended VLANs in server and transparent modes.
should save this configuration to the startup configuration so that the switch boots up in VTP transparent
mode. Otherwise, you lose the extended-range VLAN configuration if the switch resets. If you create
extended-range VLANs in VTP version 3, you cannot convert to VTP version 1 or 2.
vlan vlan-id global configuration command. When the maximum number of spanning-tree instances
are on the switch, spanning tree is disabled on any newly created VLANs. If the number of VLANs on
the switch exceeds the maximum number of spanning-tree instances, we recommend that you configure
the IEEE 802.1s Multiple STP (MSTP) on your switch to map multiple VLANs to a single spanning-tree
instance.
number of configured features affects the use of the switch hardware. If you try to create an extended-range
VLAN and there are not enough hardware resources available, an error message is generated, and the
extended-range VLAN is rejected.
extended-range VLAN information is shared across the stack.
Catalyst 2960-X Switch VLAN Configuration Guide, Cisco IOS Release 15.0(2)EX
Extended-Range VLAN Configuration Guidelines
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