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Cisco ME 3400 Ethernet Access Switch Software Configuration Guide
OL-9639-07
Chapter 12 Configuring Private VLANs
Monitoring Private VLANs
• Use the remove keyword with a secondary_vlan_list to clear the mapping between secondary
VLANs and the primary VLAN.
This example shows how to map the interfaces of VLANs 501 and 502 to primary VLAN 10, which
permits routing of secondary VLAN incoming traffic from private VLANs 501 to 502:
Switch# configure terminal
Switch(config)# interface vlan 10
Switch(config-if)# private-vlan mapping 501-502
Switch(config-if)# end
Switch# show interfaces private-vlan mapping
Interface Secondary VLAN Type
--------- -------------- -----------------
vlan10 501 isolated
vlan10 502 community
Monitoring Private VLANs
Table 12-1 shows the privileged EXEC commands for monitoring private-VLAN activity.
This is an example of the output from the show vlan private-vlan command:
Switch(config)# show vlan private-vlan
Primary Secondary Type Ports
------- --------- ----------------- ------------------------------------------
10 501 isolated Fa0/1, Gi0/1, Gi0/2
10 502 community Fa0/11, Fa0/12, Gi0/1
10 503 non-operational
Ta b l e 12-1 Private VLAN Monitoring Commands
Command Purpose
show interfaces status Displays the status of interfaces, including the VLANs to which they
belong.
show vlan private-vlan
[type]
Display the private-VLAN information for the switch.
show interface switchport Display the private-VLAN configuration on interfaces.
show interface
private-vlan mapping
Display information about the private-VLAN mapping for VLAN
interfaces.
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