Reconfirming Vlan Memberships; Changing The Reconfirmation Interval - Cisco Catalyst 3750-X Software Configuration Manual

Chapter 15 Configuring VLANs
Dynamic-access port VLAN membership is for end stations or hubs connected to end stations.
Caution
Connecting dynamic-access ports to other switches can cause a loss of connectivity.
Beginning in privileged EXEC mode, follow these steps to configure a dynamic-access port on a VMPS
client switch:
Command
Step 1
configure terminal
Step 2 interface interface-id
Step 3 switchport mode access
Step 4
switchport access vlan dynamic
Step 5
end
Step 6 show interfaces interface-id switchport
Step 7 copy running-config startup-config
To return an interface to its default configuration, use the default interface interface-id interface
configuration command. To return an interface to its default switchport mode (dynamic auto), use the no
switchport mode interface configuration command. To reset the access mode to the default VLAN for
the switch, use the no switchport access vlan interface configuration command.

Reconfirming VLAN Memberships

Beginning in privileged EXEC mode, follow these steps to confirm the dynamic-access port VLAN
membership assignments that the switch has received from the VMPS:
Command
Step 1
vmps reconfirm
Step 2
show vmps

Changing the Reconfirmation Interval

VMPS clients periodically reconfirm the VLAN membership information received from the VMPS.You
can set the number of minutes after which reconfirmation occurs.
If you are configuring a member switch in a cluster, this parameter must be equal to or greater than the
reconfirmation setting on the command switch. You must also first use the rcommand privileged EXEC
command to log in to the member switch.
OL-21521-01
Purpose
Enter global configuration mode.
Specify the switch port that is connected to the end station, and enter
interface configuration mode.
Set the port to access mode.
Configure the port as eligible for dynamic VLAN membership.
The dynamic-access port must be connected to an end station.
Return to privileged EXEC mode.
Verify your entries in the Operational Mode field of the display.
(Optional) Save your entries in the configuration file.
Purpose
Reconfirm dynamic-access port VLAN membership.
Verify the dynamic VLAN reconfirmation status.
Catalyst 3750-X and 3560-X Switch Software Configuration Guide
Configuring VMPS
15-29