Configuring the Native VLAN for Untagged Traffic 54 Configuring Trunk Ports for Load Sharing 55 Configuring Load Sharing Using STP Port Priorities 55 Where to Go Next 61 Configuring Load Sharing Using STP Path Cost 58 Additional References 61 Feature History for VLAN Tunks 61 Configuring Private VLANs 63 C H A P T E R 5 Prerequisites for Private VLANs 63 Restrictions for Private VLANs 63 Information About Private VLANs 64 Private VLAN Domains 64 Secondary VLANs 65 Private VLANs Ports 65 Private VLANs in Networks 66 IP Addressing Scheme with Private VLANs 66 Private VLANs Across Multiple Switches 67 Standard Trunk Ports 67 Isolated Private VLAN Trunk Ports 68 Promiscuous Private VLAN Trunk Ports 69 Private-VLAN Interaction with Other Features 70 Private VLANs and Unicast, Broadcast, and Multicast Traffic 70 Private VLANs and SVIs 70 Private VLANs and Switch Stacks 71 Private VLAN with Dynamic MAC Address 71 Private VLAN with Static MAC Address 71 Private VLAN Interaction with VACL/QOS 72 Private VLANs and HA Support 72 Private-VLAN Configuration Guidelines 72 Default Private-VLAN Configurations 72 Secondary and Primary VLAN Configuration 72 Private VLAN Port Configuration 74 How to Configure Private VLANs 75 Contents VLAN Configuration Guide, Cisco IOS XE 17.16.x (Catalyst 9300 Switches) x