What is VMPS in VLANs and where we use it?

VLAN management policy server is the network switch used for mapping of VLAN device information. This is cisco only technology used for security, Login for Cisco ACIS. Through VMPS we can dynamically assign switch port to VLANs/

Its VLAN Membership Policy Server (VMPS), you can assign switch ports to VLANs dynamically, based on .the source MAC address

VMPS (VLAN Management Policy Server)technology is Cisco proprietary. It is using to configure Dynamic VLAN membership for a single port .

The Catalyst series switches support only VMPS clients. Software release5.1 or later.

The Catalyst series  switches   support both VMPS servers and clients. Software release7.2 or later releases

A VLAN Management Policy Server or "VMPS" is is Cisco proprietary

and it is a network switch that contains a mapping of device information to VLAN.

This technology is useful in sites that contain a large number of mobile users.

The primary goal of VMPS is VLAN assignment for general network management purposes, but can also be used for providing security through segregating clients with an unknown MAC address.,

VMPS stand for VLAN Management Policy Server

the role of this Technic is to allow us to assign switchports dynamically to a specific VLAN based on the MAC address of the connected device

best regard

VLAN Membership Policy Server (VMPS) was a technology that, at a point in time, provided a way for organizations to control access to their networks. A few organizations embraced it and after a few years they found it to be an albatross around their neck. However, getting away from VMPS was not so easy and the longer they delay, the harder the breakup becomes.

VMPS is a Cisco proprietary solution for providing users access to a network based on their MAC address. VMPS is available on Cisco4000/4500/5000/6000/6500 switches. As part of the configuration of VPMS a large table is constructed with MAC addresses and VLANs of valid network attached devices. This VMPS database is placed on a switch in the network environment that acts like a VMPS server for other switches to query. When computers turns on and activate their NICs the access switches in the environment use VLAN Query Protocol (VQP) that uses UDP port1589 to determine the VLAN name for the end-user’s MAC address and then that user is assigned to that VLAN. The VMPS access system dynamically assigns an Ethernet switchport to a specific VLAN based on the user’s MAC address. This database is maintained manually and, based on the size of the organization, is often times updated anywhere from1 to10 times each day. The VMPS download server is a Cisco Ethernet switch and the vmps.cfg file is a file that is transmitted with TFTP to the VMPS servers. It is also possible to have a primary and a backup VMPS server for high availability.

VLAN MEMBERSHIP POLICY SERVER(VMPS) WAS A TECHNOLOGY THAT, AT A POINT IN TIME, PROVIDED A WAY FOR ORGANIZATIONS TO CONTROL ACCESS TO THEIR NETWORKS, A GEW ORG EMBRACED IT AND AGTER A FEW YEARS THEY FOUND IT TO BE AN ALBATROSS AROUND THEIR NECK. HOWEVER, GETTING AWAY FROM VMPS WAS NOT SO EASY AND THE LONGER THEY DELAY, THE HARDER THE BREAKUP BECOMES.

 VMPS IS A CISCO PROPRIETARY SOLUTION FOR PROVIDING USERS ACCESS TO A NETWORK BASED ON THEIR MAC ADD. VMPS IS ABAILABLE ON CISCO4000 TO6500 SWITCHES AS PART OF THE CONFIGURATION OF VPMS A LARGE TABLE IS CONSTRUCTED WITH MAC ADD AND VLANS OF VAILD NETWORK ATTACHED DEVICES THIS VMPS  DB IS PLACED ON A SWITCH IN THE NETWORK ENVIRONMENT THAT ACTS LIE A VMPS SERVER FOR OTHER SWITHES TI QUREY  WHEN COMPUTES TURN ON AND ACTIVATE THEIR NICS THE ACCESS SWITCHES IN THE ENVIRONMENT USE  VLAN QUERY PROTOCOL VQP THAT USES UDP PORT1589 TO DETERMINE THE VLAN NAME FOR THE END USERS  MAC ADD AND THEN THAT USER IS ASSIGNED TO THAT VLAN. THE VMPS ACCESS SYSTEM DYNAMICALLY ASSIGNS AN ETHERNET SWITCH PORT TO A SPECIFIC VLAN BASED ON THE USERS MAC ADD

With VLAN Membership Policy Server (VMPS), you can assign switch ports to VLANs dynamically, 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 dynamically assigns the new port to the proper VLAN for that host.

VLAN Management Policy Server is VMPS

1. dynamically assign switch ports to VLANs based on the source MAC address of the device from connected to the port.
2.  A host moved  from a port on one switch to  another switch port in the network, then switch dynamically assigns  proper VLAN for that host.

A VLAN Management Policy Server or "VMPS" is a network switch that contains a mapping of device information to VLAN.

he primary goal of VMPS is VLAN assignment for general network management purposes, but can also be used for providing security through segregating clients with an unknownMAC address, or through further extension of the protocol to provide login for Cisco AClS. This last functionality is now deprecated by Cisco, in favour of 802.1X, and as the VMPS technology is Cisco only, the VLAN assignment can now be carried out in the802.1X framework.

lient switches query the VMPS server using the VLAN Query Protocol, or VQP. Only Cisco produces hardware with VMPS client functionality, and is currently fully supported across their IOS switching lines. Cisco officially only supports the use of Catalyst4000,5000 and6500 switch platforms (with appropriate firmware) as VMPS servers, but these have limited functionality, and only support a static text file transferred into them with tftp.

VMPS (VLAN Management Policy Server) is a way of assigning switch ports to specific VLANs based on MAC address of connecting device