0020 active 3/1-4 1002 fddi-default active 1003 token-ring-default active 1004 fddinet-default active 1005 trnet-default active 1006 Online Diagnostic Vlan1 active internal 1007 Online Diagnostic Vlan2 active internal 1008 Online Diagnostic Vlan3 active internal 1009 Voice Internal Vlan active internal 1010 Dtp Vlan active internal 1011 Private Vlan Reserved Vlan suspend internal 1016 Online SP-RP Ping Vlan active internal The output indicates that VLAN 1 was modified as well. This is because the ports had to be removed from VLAN 1 to be added to VLAN 10. IOS Using VLAN Database This method is included for the sake of completeness. Older switches that require this method of configuration are no doubt still deployed. Newer switches that sup- port the VLAN database, such as the 3550, actually display this message when you enter VLAN database configuration mode: 3550-IOS# vlan database % Warning: It is recommended to configure VLAN from config mode, as VLAN database mode is being deprecated. Please consult user documentation for configuring VTP/VLAN in config mode. If you have an IOS switch with active VLANs, but no reference is made to them in the running configuration, it's possible that they were configured in the VLAN database. Another possibility is that they were learned via VTP (we will cover this in Chapter 6). Configuring VLANs To configure VLANs in the VLAN database, you must enter VLAN database configu- ration mode with the command vlan database. Requesting help (?) lists the commands available in this mode: 2950-IOS# vlan database 2950-IOS(vlan)# ? VLAN database editing buffer manipulation commands: abort Exit mode without applying the changes apply Apply current changes and bump revision number Apply changes, bump revision number, and exit mode Negate a command or set its defaults reset Abandon current changes and reread current database Show database information Add, delete, or modify values associated with a single VLAN Perform VTP administrative functions. To create a VLAN, give the vlan command foll