Management and Configuration Guide K/KA/KB.15.15

Configuring PoE redundancy (chassis switches only)
PoE redundancy occurs automatically when enabled. The switch keeps track of power use and
does not supply PoE power to additional PoE devices trying to connect if that results in the switch
not having enough power in reserve for redundancy.
Syntax
[no] power-over-ethernet redundancy [ n+1 | full ]
Allows you to set the amount of power held in reserve for redundancy.
Means that all available power can be allocated to PDs.no
Default: No PoE redundancy enforced.
One of the power supplies is held in reserve for redundancy. If a single power supply
fails, no powered devices are shut down.
n+1
If power supplies with different ratings are used, the highest-rated power supply is held
in reserve to ensure full redundancy.
Half of the available power supply is held in reserve for redundancy. If power supplies
with different ratings are used, the highest-rated power supply is held in reserve to
ensure full redundancy.
full
For more information about PoE redundancy and power supplies, see the PoE Planning and
Implementation Guide, available on the HP website at
www.hp.com/networking/support.
Changing the threshold for generating a power notice
Syntax
power-over-ethernet [ slot slot-id-range ] threshold 1 - 99
Specifies the PoE usage level (as a percentage of the PoE power available on a
module) at which the switch generates a power usage notice. This notice appears
as an SNMP trap and a corresponding Event Log message and occurs when a PoE
module's power consumption crosses the configured threshold value. That is, the
switch generates a notice whenever the power consumption on a module either
exceeds or drops below the specified percentage of the total PoE power available
on the module.
This command configures the notification threshold for PoE power usage on either
a global or per-module (slot) basis.
Without the [slot PoE slot-id-range] option, the switch applies one power
threshold setting on all PoE modules installed in the switch.
Enabling or disabling ports for allocating power using LLDP
Syntax
int <port-list> poe-lldp-detect [ enabled | disabled ]
Enables or disables ports for allocating PoE power based on the link-partner's
capabilities via LLDP.
Default: Disabled
Configuring PoE redundancy (chassis switches only) 113