Cisco Catalyst 3550 Command Reference Manual page 521

Multilayer switch

Hide thumbs Also See for Catalyst 3550:

Table of Contents

Chapter 2 Catalyst 3550 Switch Cisco IOS Commands

This is an example of output from the show vlan internal usage command. It shows that VLANs 1025

and 1026 are being used as internal VLANs for Fast Ethernet routed ports 23 and 24. If you want to use

one of these VLAN IDs, you must first shut down the routed port, which releases the internal VLAN,

and then create the extended-range VLAN. When you start up the routed port, another internal VLAN

number is assigned to it.

Switch> show vlan internal usage

---- -------------

1025 FastEthernet0/23

1026 FastEthernet0/24

This is an example of output from the show vlan summary command:

Switch> show vlan summary

Number of existing VLANs

Number of existing VTP VLANs

Number of existing extended VLANs : 0

Related Commands

switchport mode

vlan (global

configuration)

configuration)

Configures the VLAN membership mode of a port.

Enables config-vlan mode where you can configure VLANs 1 to 4094.

Configures VLAN characteristics in the VLAN database. Only available for

normal-range VLANs (VLAN IDs 1 to 1005).

Catalyst 3550 Multilayer Switch Command Reference

Chapters

Table of Contents