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Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
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Chapter 8 Configuring VLANs
How the VMPS Works
Troubleshooting Dynamic Port VLAN Membership
The VMPS shuts down a dynamic port under these conditions:
•
The VMPS is in secure mode, and it will not allow the host to connect to the
port. The VMPS shuts down the port to prevent the host from connecting to
the network.
•
More than 20 active hosts reside on a dynamic port.
To reenable a shut-down dynamic port, enter the interface configuration no
shutdown command.
Dynamic Port VLAN Membership Configuration Example
Figure 8-7
shows a network with a VMPS server switch and VMPS client
switches with dynamic ports. In this example, these assumptions apply:
•
The VMPS server and the VMPS client are separate switches.
•
The Catalyst 5000 series Switch 1 is the primary VMPS server.
•
The Catalyst 5000 series Switch 3 and Switch 10 are secondary VMPS
servers.
•
End stations are connected to these clients:
–
Catalyst 2900 XL Switch 2
–
Catalyst 3500 XL Switch 9
•
The database configuration file is called Bldg-G.db and is stored on the TFTP
server with the IP address 172.20.22.7.
