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VLAN interface configuration example ············································································································· 116
Configuring port-based VLANs ··································································································································· 118
Introduction to port-based VLAN ······················································································································· 118
Assigning an access port to a VLAN ················································································································ 119
Assigning a trunk port to a VLAN······················································································································ 120
Assigning a hybrid port to a VLAN ··················································································································· 121
Port-based VLAN configuration example ·········································································································· 122
Configuring MAC-based VLANs ································································································································ 124
Introduction to MAC-based VLAN ····················································································································· 124
Configuration restrictions and guidelines ········································································································· 126
Configuration procedure ···································································································································· 126
MAC-based VLAN configuration example ······································································································· 129
Configuring protocol-based VLANs ··························································································································· 131
Introduction to protocol-based VLAN ················································································································ 131
Configuration restrictions and guidelines ········································································································· 131
Configuration procedure ···································································································································· 132
Protocol-based VLAN configuration example ··································································································· 133
Configuring IP subnet-based VLANs ·························································································································· 135
Configuration procedure ···································································································································· 135
IP subnet-based VLAN configuration example ································································································· 136
Displaying and maintaining VLAN ···························································································································· 138
Configuring an isolate-user-VLAN ·························································································································· 140
Overview ······································································································································································· 140
Configuration restrictions and guidelines ·················································································································· 141
Configuration procedure ············································································································································· 141
Displaying and maintaining isolate-user-VLAN ········································································································· 142
Isolate-user-VLAN configuration example ·················································································································· 143
Network requirements ········································································································································· 143
Configuration procedure ···································································································································· 143
Verifying the configuration ································································································································· 144
Configuring a voice VLAN ····································································································································· 146
Overview ······································································································································································· 146
Methods of identifying IP phones ······························································································································· 146
OUI addresses ····················································································································································· 146
Automatically identifying IP phones through LLDP ··························································································· 147
Configuring a device to advertise voice VLAN information to IP phones ······························································ 147
How a device advertises voice VLAN information ·························································································· 147
How a device obtains voice VLAN information ······························································································· 147
IP phone access methods ············································································································································ 148
Connecting the host and the IP phone in series ······························································································· 148
Connecting the IP phone to the device separately ·························································································· 148
Configuring a voice VLAN on a port ························································································································· 148
Voice VLAN assignment modes ························································································································· 148
Security mode and normal mode of voice VLANs ··························································································· 150
Configuration prerequisites ································································································································ 151
Configuring QoS priority settings for voice traffic on an interface ································································ 151
Configuring a port to operate in automatic voice VLAN assignment mode ················································· 152
Configuring a port to operate in manual voice VLAN assignment mode ····················································· 153
Enabling LLDP to automatically discover IP phones ·································································································· 154
Configuration prerequisites ································································································································ 154
Configuration procedure ···································································································································· 155
Configuring LLDP to advertise a specific voice VLAN ······························································································ 155
Configuration guidelines ···································································································································· 155
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