Configuring Vlans In The Vtp Database - Cisco Catalyst 2950 Software Manual

Chapter 8 Configuring VLANs
Table 8-6 Ethernet VLAN Defaults and Ranges
Parameter Default
VLAN ID 1
VLAN name VLANxxxx, where xxxx is the VLAN ID
802.10 SAID 100000+VLAN ID
MTU size 1500
Translational 0
bridge 1
Translational 0
bridge 2
VLAN state active

Configuring VLANs in the VTP Database

You use the CLI vlan database VLAN database command to add, change, and delete VLANs. In VTP
server or transparent mode, commands to add, change, and delete VLANs are written to the vlan.dat file,
and you can display them by entering the privileged EXEC show vlan command. The vlan.dat file is
stored in nonvolatile RAM. The vlan.dat file is upgraded automatically, but you cannot return to an
earlier version of Cisco IOS after you upgrade to this release.
You can cause inconsistency in the VLAN database if you attempt to manually delete the vlan.dat file.
Caution
If you want to modify the VLAN configuration or VTP, use the VLAN database commands described in
the Catalyst 2950 Desktop Switch Command Reference.
You use the interface configuration command mode to define the port membership mode and add and
remove ports from VLANs. The results of these commands are written to the running-configuration file,
and you can display the file by entering the privileged EXEC show running-config command.
Note VLANs can be configured to support a number of parameters that are not discussed in detail in this
section. For complete information on the commands and parameters that control VLAN configuration,
refer to the Catalyst 2950 Desktop Switch Command Reference.
78-11380-03
Range
1–1005
No range
1–4294967294
1500–18190
0–1005
0–1005
active, suspend
Catalyst 2950 Desktop Switch Software Configuration Guide
VLANs in the VTP Database
8-17