9-36
Catalyst 3550 Multilayer Switch Software Configuration Guide
78-11194-03
Chapter 9 Creating and Maintaining VLANs
Understanding VMPS
!
vmps-vlan-group Engineering
vlan-name hardware
vlan-name software
!
!
!VLAN port Policies
!
!vmps-port-policies {vlan-name <vlan_name> | vlan-group <group-name> }
! { port-group <group-name> | device <device-id> port <port-name> }
!
vmps-port-policies vlan-group Engineering
port-group WiringCloset1
vmps-port-policies vlan-name Green
device 198.92.30.32 port 0/8
vmps-port-policies vlan-name Purple
device 198.4.254.22 port 0/2
port-group “Executive Row”
VMPS Configuration Guidelines
These guidelines and restrictions apply to dynamic port VLAN membership:
•
You must configure the VMPS before you configure ports as dynamic.
•
The communication between a cluster of switches and VMPS is managed by the command switch
and includes port-naming conventions that are different from standard port names. For the
cluster-based port-naming conventions, see the
“VMPS Database Configuration File” section on
page 9-34
.
•
When you configure a port as dynamic, the spanning-tree Port Fast feature is automatically enabled
for that port. The Port Fast mode accelerates the process of bringing the port into the forwarding
state. You can disable Port Fast mode on a dynamic port.
•
If you try to enable 802.1X on a dynamic-access (VQP) port, an error message appears, and 802.1X
is not enabled. If you try to change an 802.1X-enabled port to dynamic VLAN assignment, an error
message appears, and the VLAN configuration is not changed.
•
Trunk ports cannot be dynamic ports, but you can enter the switchport access vlan dynamic
interface configuration command for a trunk port. In this case, the switch retains the setting and
applies it if the port is later configured as an access port.
You must turn off trunking on the port before the dynamic access setting takes effect.
•
Dynamic ports cannot be monitor ports.
•
Dynamic ports cannot be members of an EtherChannel group.
•
A dynamic access port can participate in fallback bridging.
•
The VTP management domain of the VMPS client and the VMPS server must be the same.
