Interface statistics ···················································································································································· 131
Overview ······································································································································································· 131
Displaying interface statistics ······································································································································ 131
VLAN configuration ················································································································································ 133
Introduction to VLAN ··········································································································································· 133
VLAN fundamentals············································································································································· 133
VLAN types ·························································································································································· 134
Introduction to port-based VLAN ······················································································································· 135
Configuring a VLAN ···················································································································································· 136
Configuration task list ········································································································································· 136
Creating VLANs ··················································································································································· 136
Selecting VLANs ·················································································································································· 137
Modifying a VLAN ·············································································································································· 138
Modifying ports ··················································································································································· 140
VLAN configuration example ······································································································································ 141
Configuration guidelines ············································································································································· 145
VLAN interface configuration ································································································································· 146
Configuring VLAN interfaces ······································································································································ 146
Configuration task list ········································································································································· 146
Creating a VLAN interface ································································································································· 146
Modifying a VLAN interface ······························································································································ 147
Voice VLAN configuration ······································································································································ 149
OUI addresses ····················································································································································· 149
Voice VLAN assignment modes ························································································································· 149
Configuring the voice VLAN ······································································································································· 151
Configuration task list ········································································································································· 151
Configuration guidelines ············································································································································· 166
MAC address configuration ··································································································································· 167
Configuring MAC addresses ······································································································································ 168
MSTP configuration ················································································································································· 172
STP ················································································································································································· 172
STP protocol packets ··········································································································································· 172
Basic concepts in STP ·········································································································································· 172
How STP works ···················································································································································· 173
RSTP ··············································································································································································· 179
MSTP ·············································································································································································· 179
STP and RSTP limitations ····································································································································· 179
MSTP features ······················································································································································ 180
MSTP basic concepts ·········································································································································· 180
How MSTP works ················································································································································ 184
iv