Removing A Power Supply; Installing Or Providing Power To A Power Supply; Displaying Power Supply Information; Using The Simple Network Management Protocol - Extreme Networks ExtremeWare XOS Guide Manual

Managing the Switch

Removing a Power Supply

If the system power status is not redundant (N+1), then the removal of one PSU, or the loss of power to
one PSU, results in insufficient power to keep all of the I/O modules powered up. If there is not enough
power, the switch powers down the I/O modules from the highest numbered slot to the lowest
numbered slot until the switch has enough power to continue operation.

Installing or Providing Power to a Power Supply

If you install or provide power to a new PSU, I/O modules powered down due to earlier insufficient
power are considered for power up from the lowest slot number to the highest slot number, based on
the I/O module's power requirements.
If you disable a slot, the I/O module is always powered down regardless of the number of PSUs
installed.
NOTE
Beginning with ExtremeWare XOS 11.1, you can mix PSUs with 110V and 220V AC inputs, but if any PSUs with
110V AC inputs are present, the switch treats all PSUs as if they have 110V AC inputs.

Displaying Power Supply Information

To view the system power status and the amount of available and required power, use the following
command:
show power budget
To display the status of the currently installed power supplies, use the following command:
show power {<ps_num>} {detail}
To display the status of the currently installed power supply controllers, use the following command:
show power controller {<num>}

Using the Simple Network Management Protocol

Any network manager program running the Simple Network Management Protocol (SNMP) can
manage the switch, provided the Management Information Base (MIB) is installed correctly on the
management station. Each network manager program provides its own user interface to the
management facilities.
Please note, when using a network manager program to create a VLAN, Extreme Networks does not
support the SNMP create and wait operation. To create a VLAN with SNMP, use the create and go
operation.
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ExtremeWare XOS 11.1 Concepts Guide