Cisco WS-C2960-24TT-L Software Guide - Page 245

Chapter 8 Configuring VLANs VLANs in the VTP Database Table 8-10 Token Ring (TRCRF) VLAN Defaults and Ranges (continued) Parameter MTU size Translational bridge 1 Translational bridge 2 VLAN state Bridge mode ARE max hops STE max hops Backup CRF Default VTPv1 default 1500; VTPv2 default 4472 0 0 active srb 7 7 disabled Range 1500-18190 0-1005 0-1005 active, suspend srb, srt 0-13 0-13 disable; enable 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 file vlan.dat, and you can display them by entering the privileged EXEC show vlan command. The vlan.dat file is stored in nonvolatile memory. The vlan.dat file is upgraded automatically, but you cannot return to an earlier version of Cisco IOS after you upgrade to this release. Caution You can cause inconsistency in the VLAN database if you attempt to manually delete the vlan.dat file. If you want to modify the VLAN configuration or VTP, use the VLAN database commands described in the 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 switch command reference. 78-6511-08 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 8-23