Configuring Dynamic Port Vlan Membership With Vmps; Understanding How Vmps Works - Cisco WS-C6506 Software Manual

Configuring Dynamic Port VLAN Membership
with VMPS
This chapter describes how to configure dynamic port VLAN membership using the VLAN Management
Policy Server (VMPS) on the Catalyst 6500 series switches.
Note For complete syntax and usage information for the commands that are used in this chapter, refer to the
Catalyst 6500 Series Switch Command Reference publication.
This chapter consists of these sections:
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Understanding How VMPS Works

With VMPS, you can assign the switch ports to the VLANs dynamically, based on the source Media
Access Control (MAC) address of the device that is connected to the port. When you move a host from
a port on one switch in the network to a port on another switch in the network, the switch assigns the
new port to the proper VLAN for that host dynamically.
When you enable VMPS, a MAC address-to-VLAN mapping database downloads from a Trivial File
Transfer Protocol (TFTP) server and VMPS begins to accept the client requests. If you reset or power
cycle the switch, the VMPS database downloads from the TFTP server automatically and VMPS is
reenabled.
VMPS opens a User Datagram Protocol (UDP) socket to communicate and listen to the client requests.
When the VMPS server receives a valid request from a client, it searches its database for a MAC
address-to-VLAN mapping.
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Understanding How VMPS Works, page 19-1
Default VMPS and Dynamic Port Configuration, page 19-2
Dynamic Port VLAN Membership and VMPS Configuration Guidelines, page 19-3
Configuring VMPS and Dynamic Port VLAN Membership on the Switch, page 19-3
Backing up the VMPS Configuration File, page 19-8
Troubleshooting VMPS and Dynamic Port VLAN Membership, page 19-9
Dynamic Port VLAN Membership with VMPS Configuration Examples, page 19-10
Dynamic Port VLAN Membership with Auxiliary VLANs, page 19-14
C H A P T E R
Catalyst 6500 Series Switch Software Configuration Guide—Release 8.7
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