11-3
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 11 Configuring VLANs
Understanding How VLANs Work
• Extended-range VLANs: 1024–4094
Note With VTP version 3, you can manage VLANs 1006–4094. These VLANs are propagated
with VTP version 3.
Configurable VLAN Parameters
Whenever you create or modify VLANs 2–1005, you can set the parameters as follows:
Note Ethernet VLANs 1 and 1025–4094 can use the defaults only.
Note With software release 8.3(1) and later releases, you can name all user VLANs. This capability is
independent of any VTP version or mode.
• VLAN number
• VLAN name
• VLAN type: Ethernet, FDDI, FDDINET, Token Ring Bridge Relay Function (TrBRF), or Token
Ring Concentrator Relay Function (TrCRF)
• VLAN state: active or suspended
• Multi-Instance Spanning Tree Protocol (MISTP) instance
• Private VLAN type: primary, isolated, community, two-way community, or none
• Security Association Identifier (SAID)
• Maximum transmission unit (MTU) for the VLAN
• Ring number for FDDI and TrCRF VLANs
• Bridge identification number for TrBRF VLANs
• Parent VLAN number for TrCRF VLANs
• STP type for TrCRF VLANs: IEEE, IBM, or auto
• VLAN to use when translating from one VLAN media type to another (VLANs 1–1005 only);
requires a different VLAN number for each media type
• Source routing bridge mode for Token Ring VLANs: source-routing bridge (SRB) or source-routing
transparent bridge (SRT)
• Backup for TrCRF VLAN
• Maximum hops VLAN All-Routes Explorer frames (ARE) and Spanning Tree Explorer frames
(STE) for Token Ring
• Remote Switched Port Analyzer (RSPAN)
Default VLAN Configuration
Table 11-1 shows the default VLAN configuration for the Catalyst 6500 series switches.
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