Cisco 2950G 24 Software Configuration Guide - Page 362
VMPS Database Configuration File, support a cluster.
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Configuring VMPS Chapter 14 Configuring VLANs If the link goes down on a dynamic port, the port returns to an isolated state and does not belong to a VLAN. Any hosts that come online through the port are checked again through the VQP with the VMPS before the port is assigned to a VLAN. VMPS Database Configuration File The VMPS contains a database configuration file that you create. This ASCII text file is stored on a switch-accessible TFTP server that functions as a VMPS server. The file contains VMPS information, such as the domain name, the fallback VLAN name, and the MAC-address-to-VLAN mapping. The switch cannot act as the VMPS, but you can use a Catalyst 5000 or Catalyst 6000 series switch as the VMPS. You can configure a fallback VLAN name. If you connect a device with a MAC address that is not in the database, the VMPS sends the fallback VLAN name to the client. If you do not configure a fallback VLAN and the MAC address does not exist in the database, the VMPS sends an access-denied response. If the VMPS is in secure mode, it sends a port-shutdown response. Whenever port names are used in the VMPS database configuration file, the server must use the switch convention for naming ports. For example, Fa0/4 is fixed Fast Ethernet port number 4. If the switch is a cluster member, the command switch adds the name of the switch before the type. For example, es3%Fa0/4 refers to fixed Fast Ethernet port 4 on member switch 3. When port names are required, these naming conventions must be followed in the VMPS database configuration file when it is configured to support a cluster. This example shows a example of a VMPS database configuration file as it appears on a Catalyst 6000 series switch. The file has these characteristics: • The security mode is open. • The default is used for the fallback VLAN. • MAC address-to-VLAN name mappings-The MAC address of each host and the VLAN to which each host belongs is defined. • Port groups are defined. • VLAN groups are defined. • VLAN port policies are defined for the ports associated with restricted VLANs. !VMPS File Format, version 1.1 ! Always begin the configuration file with ! the word "VMPS" ! !vmps domain ! The VMPS domain must be defined. !vmps mode {open | secure} ! The default mode is open. !vmps fallback !vmps no-domain-req { allow | deny } ! ! The default value is allow. vmps domain DSBU vmps mode open vmps fallback default vmps no-domain-req deny ! ! !MAC Addresses ! vmps-mac-addrs ! 14-26 Catalyst 2950 Desktop Switch Software Configuration Guide 78-14982-01