10-23
Software Configuration Guide—Release 12.2(25)SG
OL-7659-03
Chapter 10 Understanding and Configuring VLANs, VTP, and VMPS
VLAN Membership Policy Server
Voice Ports
If a VVID (voice VLAN ID) is configured on a dynamic access port, the port can belong to both an
access VLAN and a voice VLAN. Consequently, an access port configured for connecting an IP phone
can have separate VLANs for the following:
• Data traffic to and from the PC that is connected to the switch through the access port of the IP phone
(access VLAN)
• Voice traffic to and from the IP phone (voice VLAN)
Reconfirming VLAN Memberships
To confirm the dynamic port VLAN membership assignments that the switch has received from the
VMPS, perform this task:
Configuring Reconfirmation Interval
VMPS clients periodically reconfirm the VLAN membership information received from the VMPS. You
can set the number of minutes the VMPS client waits before reconfirming the VLAN-to-MAC-address
assignments.
To configure the reconfirmation interval, perform this task:
This example shows how to change the reconfirmation interval to 60 minutes and verify the change:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# vmps reconfirm 60
Switch(config)# end
Switch# show vmps
VQP Client Status:
--------------------
VMPS VQP Version: 1
Reconfirm Interval: 60 min
Server Retry Count: 10
VMPS domain server: 172.20.130.50 (primary, current)
Reconfirmation status
---------------------
VMPS Action: No Host
Command Purpose
Step 1
Switch# vmps reconfirm
Reconfirms dynamic port VLAN membership.
Step 2
Switch# show vmps
Verifies the dynamic VLAN reconfirmation status.
Command Purpose
Step 1
Switch# configure terminal
Enters global configuration mode.
Step 2
Switch(config)# vmps reconfirm
minutes
Specifies the number of minutes between reconfirmations of the
dynamic VLAN membership.
Step 3
Switch(config)# end
Returns to privileged EXEC mode.
Step 4
Switch# show vmps
Verifies the dynamic VLAN reconfirmation status.
