Cisco Catalyst 4500 Series Software Configuration Manual page 639

Chapter 17 Configuring VLANs, VTP, and VMPS
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# interface interface
Step 3
Switch(config-if)# switchport mode
access
Step 4
Switch(config-if)# switchport access
vlan dynamic
Step 5
Switch(config-if)# end
Step 6
Switch# show interface interface
switchport
This example shows how to configure a dynamic access port and to verify the entry:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# interface fa1/1
Switch(config-if)# switchport mode access
Switch(config-if)# switchport access vlan dynamic
Switch(config-if)# end
Switch# show interface fa1/1 switchport
Name: Fa0/1
Switchport: Enabled
Administrative mode: dynamic auto
Operational Mode: dynamic access
Administrative Trunking Encapsulation: isl
Operational Trunking Encapsulation: isl
Negotiation of Trunking: Disabled
Access Mode VLAN: 0 ((Inactive))
Trunking Native Mode VLAN: 1 (default)
Trunking VLANs Enabled: NONE
Pruning VLANs Enabled: NONE
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:
•
•
Reconfirming VLAN Memberships
To confirm the dynamic port VLAN membership assignments that the switch has received from the
VMPS, perform this task:
Command
Step 1
Switch# vmps reconfirm
Step 2
Switch# show vmps
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)
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Purpose
Enters global configuration mode.
Enters interface configuration mode and specifies the port to be
configured.
Sets the port to access mode.
Configures the port as eligible for dynamic VLAN access.
Returns to privileged EXEC mode.
Verifies the entry.
Purpose
Reconfirms dynamic port VLAN membership.
Verifies the dynamic VLAN reconfirmation status.
VLAN Membership Policy Server
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