user manual

Restrictions for VLAN Trunks 62
Information About VLAN Trunks 62
Trunking Overview 62
Trunking Modes 62
Layer 2 Interface Modes 63
Allowed VLANs on a Trunk 64
Load Sharing on Trunk Ports 64
Network Load Sharing Using STP Priorities 64
Network Load Sharing Using STP Path Cost 65
Feature Interactions 66
Default Layer 2 Ethernet Interface VLAN Configuration 66
How to Configure VLAN Trunks 67
Configuring an Ethernet Interface as a Trunk Port 67
Configuring a Trunk Port 67
Defining the Allowed VLANs on a Trunk 69
Changing the Pruning-Eligible List 71
Configuring the Native VLAN for Untagged Traffic 72
Configuring Trunk Ports for Load Sharing 73
Configuring Load Sharing Using STP Port Priorities 73
Configuring Load Sharing Using STP Path Cost 77
Configuration Examples for VLAN Trunking 80
Example: Configuring an IEEE 802.1Q Trunk 80
Example: Removing a VLAN 81
Where to Go Next 81
Additional References 81
Feature History and Information for VLAN Trunks 82
CHAPTER 5 Configuring Private VLANs 83
Finding Feature Information 83
Prerequisites for Private VLANs 83
Secondary and Primary VLAN Configuration 84
Private VLAN Port Configuration 85
Restrictions for Private VLANs 86
Limitations with Other Features 86
Information About Private VLANs 87
Catalyst 2960-XR Switch VLAN Configuration Guide, Cisco IOS Release 15.0(2)EX1
vi OL-29440-01
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