Power priority operation................................................................................................................ 87
Configuring PoE operation.......................................................................................................................87
Disabling or re-enabling PoE port operation................................................................................. 87
Enabling support for pre-standard devices................................................................................... 87
Configuring the PoE port priority................................................................................................... 88
Controlling PoE allocation............................................................................................................. 89
Manually configuring PoE power levels........................................................................................ 90
Changing the threshold for generating a power notice................................................................. 92
Cycling power on a port................................................................................................................ 93
PoE/PoE+ allocation using LLDP information..........................................................................................93
LLDP with PoE.............................................................................................................................. 93
Enabling or disabling ports for allocating power using LLDP............................................. 93
Enabling PoE detection via LLDP TLV advertisement........................................................94
LLDP with PoE+............................................................................................................................94
Overview............................................................................................................................ 94
PoE allocation.................................................................................................................... 94
Initiating advertisement of PoE+ TLVs............................................................................... 95
Viewing PoE when using LLDP information....................................................................... 96
Operation note....................................................................................................................97
Viewing the global PoE power status of the switch..................................................................................98
Viewing PoE status on all ports.....................................................................................................99
Viewing the PoE status on specific ports.................................................................................... 101
Chapter 5 Port Trunking.............................................................................. 104
Overview of port trunking....................................................................................................................... 104
Port connections and configuration.............................................................................................104
Port trunk features and operation.......................................................................................................... 105
Fault tolerance ........................................................................................................................... 105
Trunk configuration methods..................................................................................................................105
Dynamic LACP trunk...................................................................................................................105
Static trunk.................................................................................................................................. 106
Viewing and configuring a static trunk group (Menu)............................................................................. 110
Viewing and configuring port trunk groups (CLI)....................................................................................112
Viewing static trunk type and group for all ports or for selected ports.........................................112
Viewing static LACP and dynamic LACP trunk data................................................................... 113
Dynamic LACP Standby Links.....................................................................................................113
Configuring a static trunk or static LACP trunk group..................................................................114
Removing ports from a static trunk group....................................................................................114
Enabling a dynamic LACP trunk group........................................................................................115
Removing ports from a dynamic LACP trunk group.................................................................... 115
Viewing existing port trunk groups (WebAgent)..................................................................................... 116
Trunk group operation using LACP........................................................................................................ 116
Default port operation..................................................................................................................118
LACP notes and restrictions........................................................................................................119
802.1X (Port-based access control) configured on a port................................................ 120
Port security configured on a port.................................................................................... 120
Changing trunking methods............................................................................................. 120
Static LACP trunks........................................................................................................... 120
Dynamic LACP trunks...................................................................................................... 120
VLANs and dynamic LACP.............................................................................................. 120
Blocked ports with older devices...................................................................................... 121
Spanning Tree and IGMP.................................................................................................121
Half-duplex, different port speeds, or both not allowed in LACP trunks........................... 122
Dynamic/static LACP interoperation.................................................................................122
Trunk group operation using the "trunk" option......................................................................................122
Contents 5
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