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Configuring VLAN interfaces ································································································································· 135
Overview ······································································································································································· 135
Creating a VLAN interface ·········································································································································· 135
Modifying a VLAN interface ······································································································································· 136
Configuring a voice VLAN ····································································································································· 140
Overview ······································································································································································· 140
OUI addresses ····················································································································································· 140
Voice VLAN assignment modes ························································································································· 140
Security mode and normal mode of voice VLANs ··························································································· 142
Configuration guidelines ············································································································································· 143
Recommended voice VLAN configuration procedure ······························································································ 143
Configuring voice VLAN globally ······························································································································ 144
Configuring voice VLAN on ports ······························································································································ 145
Adding OUI addresses to the OUI list ······················································································································· 146
Voice VLAN configuration examples ························································································································· 147
Configuring voice VLAN on a port in automatic voice VLAN assignment mode ········································· 147
Configuring a voice VLAN on a port in manual voice VLAN assignment mode ········································· 152
Configuring the MAC address table ····················································································································· 158
Overview ······································································································································································· 158
How a MAC address entry is created ·············································································································· 158
Types of MAC address entries ··························································································································· 159
MAC address table-based frame forwarding ·································································································· 159
Displaying and configuring MAC address entries ··································································································· 159
Setting the aging time of MAC address entries ········································································································ 161
MAC address table configuration example ·············································································································· 162
Configuring MSTP ··················································································································································· 163
Overview ······································································································································································· 163
Introduction to STP ······················································································································································· 163
Protocol packets of STP ······································································································································· 163
Basic concepts in STP ·········································································································································· 163
How STP works ···················································································································································· 165
Introduction to RSTP ····················································································································································· 170
Introduction to MSTP ···················································································································································· 170
Why MSTP ··························································································································································· 170
Basic MSTP concepts ·········································································································································· 171
How MSTP works ················································································································································ 175
Implementation of MSTP on devices ·················································································································· 175
Protocols and standards ····································································································································· 175
Configuration guidelines ············································································································································· 176
Recommended MSTP configuration procedure ········································································································· 176
Configuring an MST region ········································································································································ 176
Configuring MSTP globally ········································································································································· 178
Configuring MSTP on a port ······································································································································· 180
Displaying MSTP information of a port ····················································································································· 182
MSTP configuration example ······································································································································ 184
Configuring link aggregation and LACP ··············································································································· 190
Overview ······································································································································································· 190
Basic concepts of link aggregation ··················································································································· 190
Link aggregation modes ····································································································································· 191
Load sharing mode of an aggregation group ·································································································· 193
Configuration guidelines ············································································································································· 193
Recommended link aggregation and LACP configuration procedures ·································································· 194
