Dell PowerConnect 7048P - What Configuration Is Required for Plug-In Modules; What Are the Key Poe Plus Features for the PC7024 P and PC7048 P

Managing General System Settings 275
To increase security, you can require authentication between the configured
SNTP server and the SNTP client on the switch. Authentication is provided
by Message Digest 5 (MD5). MD5 verifies the integrity of the
communication and authenticates the origin of the communication.
What Configuration Is Required for Plug-In Modules?
The switch supports several different plug-in modules (also known as cards)
for the expansion slots located on the back of the switch. For information
about the slots and the supported modules, see "Expansion Slots for Plug-in
Modules" on page 88. You can preconfigure the card type prior to inserting it
into the switch.
Hot-swap support is available for plug-in modules, which means the switch
does not require a reboot when you insert or remove cards. However, the
switch does require a reboot to change the role of the ports on a CX-4 module
from stacking to Ethernet or vice-versa. The CX-4 modules will operate in the
mode for which they are configured. All other plug-in modules will default to
Ethernet mode upon rebooting the switch.
Before inserting a new module into the expansion slot, issue a no slot or clear
config command from the CLI so that the switch can recognize the new
module.
What Are the Key PoE Plus Features for the PC7024P and PC7048P?
Table 11-4 describes some of the key PoE Plus features the switches support.
Table 11-4. PoE Plus Key Features (7024P and 7048P Only)
Feature Description
Global Usage
Threshold
Provides the ability to specify a power limit as a percentage
of the maximum power available to PoE ports. Setting a
limit prevents the PoE switch from reaching an overload
condition.
Per-Port Power
Prioritization
Provides the ability to assign a priority to each PoE port.
When the power budget of the PoE switch has been
exhausted, the higher-priority ports are given preference
over the lower-priority ports. Lower priority ports are
automatically stopped from supplying power in order to
provide power to higher-priority ports.