Refer to Cisco Technical Tips Conventions for more information on document conventions. This document can also be used with these hardware and software versions:Ĭisco Catalyst 6000, 4500, 4000 series switches that run Cisco IOS.Ĭisco Catalyst 3750, 3750E, 3560, 3560E, 3550, 2970, 2960, 2955, 2950, and 2940 series switches. If your network is live, ensure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment.
The information in this document is based on these software and hardware versions:Ĭisco Catalyst 6500 switch that runs Cisco IOS® Software Release 12.1(26)E1Ĭisco Catalyst 2950 switch that runs Cisco IOS Software Release 12.1(22)EA9 Prerequisites RequirementsĬisco recommends that you have knowledge of this topic: This document describes how Catalyst switches maintain VLAN information in the special vlan.dat file.
