CHAPTER 5
Configuring Private VLANs•FindingFeature Information, page 83
•Prerequisitesfor Private VLANs, page 83
•Restrictionsfor Private VLANs, page 86
•InformationAbout Private VLANs, page 87
•Howto ConfigurePrivateVLANs, page 93
•MonitoringPrivate VLANs, page 101
•ConfigurationExamples for Private VLANs, page 102
•Whereto Go Next, page 104
•AdditionalReferences, page 104
•FeatureHistory and InformationforPrivate VLANs, page 105
Finding Feature Information
Yoursoftware release may not support all the features documented in this module. For the latest feature
informationand caveats, see the release notes for your platform and software release.
UseCisco Feature Navigator to findinformationabout platform support andCisco software image support.
Toaccess Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not
required.
Prerequisites for Private VLANs
Thefollowing areprerequisitesfor configuring privateVLANs:
•Whenyou configure private VLANs on switches running VTP, the switch must be in VTP transparent
mode.
•Whenconfiguring private VLANs on the switch, alwaysuse the default Switch Database Management
(SDM)template to balance system resources between unicast routes and Layer 2 entries. If another SDM
Catalyst 2960-XR Switch VLAN Configuration Guide, Cisco IOS Release 15.0(2)EX1
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