Table of Contents
Advertisement
Configuring Dynamic VLAN Membership with
VMPS
This chapter describes how to configure dynamic VLAN membership for ports in your network using
the VLAN Management Policy Server (VMPS) on the Catalyst enterprise LAN switches.
Note
For complete syntax and usage information for the commands that are used in this chapter, refer to the
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Command
Reference.
This chapter consists of these sections:
•
•
•
•
•
•
•
•
Understanding How VMPS Works
With VMPS, you can dynamically assign switch ports to VLANs that are based on the source MAC
address of the device 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 to the VMPS server, and the VMPS server begins to accept client
requests. VMPS remains enabled, regardless of whether you reset or power cycle the switch.
The VMPS opens a User Datagram Protocol (UDP) socket to communicate and listen to client requests.
When the VMPS server receives a valid request from a client, it searches its database for a MAC
address-to-VLAN mapping.
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
Understanding How VMPS Works, page 12-1
VMPS and Dynamic Port Hardware and Software Requirements, page 12-2
Default VMPS and Dynamic Port Configuration, page 12-2
Configuration Guidelines for Dynamic Ports and VMPS, page 12-3
Configuring VMPS, page 12-4
Troubleshooting VMPS and Dynamic Port VLAN Membership, page 12-10
VMPS Example, page 12-11
Dynamic Port VLAN Membership with Auxiliary VLANs, page 12-14
C H A P T E R
12
12-1
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
