Cisco WS-C6506 - Dynamic Port VLAN Membership Configuration Example

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Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
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Chapter 19 Configuring Dynamic Port VLAN Membership with VMPS
Dynamic Port VLAN Membership with VMPS Configuration Examples
Dynamic Port VLAN Membership Configuration Example
Figure 19-1 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.
• Switch 1 is the primary VMPS server.
• Switch 3 and Switch 10 are secondary VMPS servers.
• End stations are connected to these clients:
– Switch 2
– Switch 9
• The database configuration file is called Bldg-G.db and is stored on a TFTP server with IP address
172.20.22.7.
To configure VMPS and dynamic ports, perform these steps:
Step 1 Configure Switch 1 as the primary VMPS server.
a. Configure the IP address of the TFTP server on which the ASCII file resides:
Console> (enable) set vmps tftpserver 172.20.22.7 Bldg-G.db
b. Enable VMPS:
Console> (enable) set vmps state enable
After entering these commands, the file Bldg-G.db is downloaded to Switch 1. Switch 1 becomes the
VMPS server.
Step 2 Configure the VMPS server addresses on each VMPS client.
a. Configure the primary VMPS server IP address:
Console> (enable) set vmps server 172.20.26.150 primary
b. Configure the secondary VMPS server IP addresses:
Console> (enable) set vmps server 172.20.26.152
Console> (enable) set vmps server 172.20.26.159
c. Verify the VMPS server addresses:
Console> (enable) show vmps server
Step 3 Configure port 3/1 on Switch 2 as dynamic.
Console> (enable) set port membership 3/1 dynamic
Step 4 Connect End Station 2 on port 3/1. When End Station 2 sends a packet, Switch 2 sends a query to the
primary VMPS server, Switch 1. Switch 1 responds with the VLAN to assign to port 3/1. Because
spanning-tree PortFast mode is enabled by default on dynamic ports, port 3/1 connects immediately and
enters forwarding mode.
Step 5 Repeat Steps 2 and 3 to configure the VMPS server addresses and assign dynamic ports on each VMPS
client switch.