19-10
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
OL-8978-04
Chapter 19 Configuring Dynamic Port VLAN Membership with VMPS
Dynamic Port VLAN Membership with VMPS Configuration Examples
Troubleshooting Dynamic Port VLAN Membership
A dynamic port might shut down under these circumstances:
• VMPS is in secure mode and it is illegal for the host to connect to the port. The port shuts down to
prevent the host from connecting to the network.
• More than 50 active hosts reside on a dynamic port.
To reenable a shut-down dynamic port, enter the set port enable mod/port command.
Dynamic Port VLAN Membership with VMPS Configuration
Examples
These sections provide examples of how to configure VMPS and dynamic ports:
• VMPS Database Configuration File Example, page 19-10
• Dynamic Port VLAN Membership Configuration Example, page 19-12
VMPS Database Configuration File Example
This example shows a sample VMPS database configuration file. A VMPS database configuration file
is an ASCII text file that is stored on a TFTP server accessible to the switch configured as the VMPS
server. A summary of the configuration example follows:
• 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 that are associated with restricted VLANs.
!VMPS File Format, version 1.1
! Always begin the configuration file with
! the word “VMPS”
!
!vmps domain <domain-name>
! The VMPS domain must be defined.
!vmps mode {open | secure}
! The default mode is open.
!vmps fallback <vlan-name>
!vmps no-domain-req { allow | deny }
!
! The default value is allow.
vmps domain WBU
vmps mode open
vmps fallback default
vmps no-domain-req deny
!
!
!MAC Addresses
!
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