Configuring SNMP trap function ····························································································································· 125

SNMP configuration example ······································································································································· 127

Interface statistics ···················································································································································· 133

Overview ········································································································································································· 133

Displaying interface statistics ········································································································································· 133

VLAN configuration ················································································································································ 135

Introduction to VLAN ················································································································································ 135

VLAN fundamentals ·················································································································································· 135

VLAN types ································································································································································ 136

Introduction to port-based VLAN ····························································································································· 137

Configuring a VLAN ······················································································································································· 138

Configuration task list ··············································································································································· 138

Creating VLANs ························································································································································ 138

Selecting VLANs ························································································································································ 139

Modifying a VLAN ···················································································································································· 140

Modifying ports ························································································································································· 142

VLAN configuration example ········································································································································ 143

Configuration guidelines ················································································································································ 148

VLAN interface configuration ································································································································· 149

Configuring VLAN interfaces ········································································································································· 149

Creating a VLAN interface ······································································································································ 149

Modifying a VLAN interface ···································································································································· 150

Voice VLAN configuration ······································································································································ 153

OUI addresses ··························································································································································· 153

Voice VLAN assignment modes ······························································································································ 153

Security mode and normal mode of voice VLANs ································································································ 155

Configuring the voice VLAN ·········································································································································· 155

Configuring voice VLAN globally ··························································································································· 157

Configuring voice VLAN on a port ························································································································· 157

Adding OUI addresses to the OUI list ···················································································································· 159

Voice VLAN configuration examples ···························································································································· 160

Configuring voice VLAN on a port in automatic voice VLAN assignment mode ·············································· 160

Configuring a voice VLAN on a port in manual voice VLAN assignment mode ··············································· 165

MAC address configuration ··································································································································· 172

Configuring MAC addresses ········································································································································· 173

Configuring a MAC address entry ························································································································· 173

Setting the aging time of MAC address entries ····································································································· 175

MAC address configuration example ··························································································································· 176

MSTP configuration ················································································································································· 177

STP 177

STP protocol packets ················································································································································ 177

Basic concepts in STP ··············································································································································· 177

How STP works ························································································································································· 178

RSTP ·················································································································································································· 184

MSTP ················································································································································································ 185

STP and RSTP limitations ·········································································································································· 185

MSTP features ···························································································································································· 185