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Max number private VLAN's

Does anybody know what the constrains are for VLAN's on a 6500 switch?

Maximum VLAN's/Private VLAN's and secondary VLAN's per private VLAN.

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Cisco Employee

Max number private VLAN's

Catalyst 6500 series switches support 4096 VLANs in accordance with the IEEE 802.1Q standard. These

VLANs are organized into several ranges; you use each range slightly differently. Some of these VLANs

are propagated to other switches in the network when you use the VLAN Trunking Protocol (VTP). The

extended-range VLANs are not propagated, so you must configure extended-range VLANs manually on

each network device.

Table 14-1 describes the VLAN ranges.

The following information applies to VLAN ranges:

• Layer 3 LAN ports, WAN interfaces and subinterfaces, and some software features use internal

VLANs in the extended range. You cannot use an extended range VLAN that has been allocated for

internal use.

• To display the VLANs used internally, enter the show vlan internal usage command. With earlier

releases, enter the show vlan internal usage and show cwan vlans commands.

• You can configure ascending internal VLAN allocation (from 1006 and up) or descending internal

VLAN allocation (from 4094 and down).

• You must enable the extended system ID to use extended range VLANs (see the “Understanding the

Bridge ID” section on page 20-2).

Table 14-1 VLAN Ranges

VLANs Range Usage

Propagated

by VTP

0, 4095 Reserved For system use only. You cannot see or use these VLANs. —

1 Normal Cisco default. You can use this VLAN but you cannot delete it. Yes

2–1001 Normal For Ethernet VLANs; you can create, use, and delete these

VLANs.

Yes

1002–1005 Normal Cisco defaults for FDDI and Token Ring. You cannot delete

VLANs 1002–1005.

Yes

1006–4094 Extended

Ref:http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/configuration/guide/vlans.pdf

HTH

Regards

Inayath

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