Users Guide

Table Of Contents
Switch Management Commands 2149
dot3bt+legacy —Enable 802.3bt, 802.3at, 802.3af and pre-9802.3af
device detection. This is only available on the N2200PX-ON/N3200P-
ON/N3200PX-ON/N3200PXE-ON switches.
Default Configuration
The default value is dot3at+legacy. IEEE 802.3bt+legacy detection is
enabled by default for the N2200PX-ON/N3200P-ON/N3200PX-
ON/N3200PXE-ON switches.
Command Mode
Global Configuration mode
User Guidelines
If no unit number is specified, the entire stack is configured. If the detection
mode is configured at dot3at, class-based allocation will reserve the full
amount of power (33W). To use legacy (pre-802.3af/802.3at), configure
detection as dot3at+legacy.
The N2200PX-ON/N3200PX-ON switches implement IEEE 802.3bt event
classification in addition to power negotiation using LLDP. PD’s that
implement 802.3bt may receive 60W power using four event detection or
using LLDP negotiation. The dot3at/dot3at+legacy parameters are not
available on these switches. IEEE 802.3bt is backwards compatible with
802.3at/802.3af/N3208PX-ON/N3224P-ON/N3224PX-ON/N3248P-
ON/N3248PXE-ON devices.
Configure
power inline detection
dot3bt to enable IEEE 802.3bt compliant
capability and disable pre-IEEE 802.3af event classification/detection. In this
mode, class 0 devices are treated as class 3.
The power inline detection dot3bt and power inline detection
dot3bt+legacy commands are only available on the N2200PX-ON/N3200P-
ON/N3200PX-ON/N3200PXE-ON switches.
Command History
Release 6.3.6 deprecates the legacy-only parameter in favor of dot3at+legacy
as the legacy-only capability is not present in the hardware.
Command updated in firmware release 6.6.1.