Configuring Private Vlans; Tasks For Configuring Private Vlans; Default Private-Vlan Configuration - Cisco Catalyst 3120 Software Manual

Configuring Private VLANs

•
For more information about switch stacks, see
Configuring Private VLANs
These sections contain this configuration information:
•
•
•
•
•
•
•

Tasks for Configuring Private VLANs

To configure a private VLAN, perform these steps:
Step 1 Set VTP mode to transparent.
Step 2 Create the primary and secondary VLANs and associate them. See the
VLANs in a Private VLAN" section on page
Note
Configure interfaces to be isolated or community host ports, and assign VLAN membership to the host
Step 3
port. See the
Step 4 Configure interfaces as promiscuous ports, and map the promiscuous ports to the primary-secondary
VLAN pair. See the
page
Step 5 If inter-VLAN routing will be used, configure the primary SVI, and map secondary VLANs to the
primary. See the
page
Step 6 Verify private-VLAN configuration.

Default Private-VLAN Configuration

No private VLANs are configured.
Cisco Catalyst Blade Switch 3120 for HP Software Configuration Guide
15-6
If two stacks merge, private VLANs on the winning stack are not affected, but private-VLAN
configuration on the losing switch is lost when that switch reboots.
Tasks for Configuring Private VLANs, page 15-6
Default Private-VLAN Configuration, page 15-6
Private-VLAN Configuration Guidelines, page 15-7
Configuring and Associating VLANs in a Private VLAN, page 15-10
Configuring a Layer 2 Interface as a Private-VLAN Host Port, page 15-11
Configuring a Layer 2 Interface as a Private-VLAN Promiscuous Port, page 15-13
Mapping Secondary VLANs to a Primary VLAN Layer 3 VLAN Interface, page 15-14
If the VLAN is not created already, the private-VLAN configuration process creates it.
"Configuring a Layer 2 Interface as a Private-VLAN Host Port" section on page
"Configuring a Layer 2 Interface as a Private-VLAN Promiscuous Port" section on
15-13.
"Mapping Secondary VLANs to a Primary VLAN Layer 3 VLAN Interface" section on
15-14.
Chapter 15
Chapter 5, "Managing Switch Stacks."
"Configuring and Associating
15-10.
Configuring Private VLANs
15-11.
OL-12247-01