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BES50 advanced features fundamentals
The following figure illustrates a dynamically configured trunk.
Dynamically configured trunk
Besides balancing the load across each port in the trunk, the other ports
provide redundancy by taking over the load if a port in the trunk fails.
However, before you make any physical connections between devices, use
the Web interface to specify the trunk on the devices at both ends.
Power over Ethernet
The switch can provide DC power to a wide range of connected devices,
eliminating the need for an additional power source and cutting down
on the amount of cables attached to each device. After the switch is
configured to supply power, it initializes an automatic detection process that
is authenticated by a PoE signature from the connected device. Detection
and authentication prevent damage to non-802.3af compliant devices.
Switch power management enables total switch power and individual port
power to be controlled within a configured power budget. Port power can
be automatically turned on and off for connected devices, and a per-port
power priority can be set so that the switch never exceeds its allocated
power budget. When a device is connected to a switch port, its power
requirements are detected by the switch before power is supplied. If the
power required by a device exceeds the power budget of the port or the
whole switch, power is not supplied.
Ports can be set to one of three power priority levels: critical, high, or low.
To control the power supply within the switch budget, ports set at critical or
high priority have power enabled in preference to those ports set at low
priority. For example, when a device is connected to a port set to critical
priority, the switch supplies the required power, if necessary, by dropping
SMB
Using the Nortel Business Ethernet Switch 50 Series
NN47924-301
01.01
Standard
1.00
October 2006
Copyright © 2006, Nortel Networks
Nortel Networks Confidential
.
Summary of Contents for BES50FE-12T PWR
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