Power Supply Redundancy - Juniper JUNOS OS 10.3 - SOFTWARE Manual

Complete Software Guide for Junos
Table 71: System Management Features (continued)
Feature
Configuration rollback
IP directed broadcast
J-Web interface, for switch
configuration and management
Online insertion and removal (OIR) of
uplink modules
Power budget management
Related
Documentation
Power Management
Understanding Power Management on EX Series Switches
378
®
OS for EX Series Ethernet Switches, Release 10.3
EX2200 Switches
Junos OS 10.1R1
Not supported
Junos OS 10.1R1
Not applicable
Not applicable
High Availability Features for EX Series Switches Overview on page 20
Layer 3 Protocols Supported on EX Series Switches on page 14
Layer 3 Protocols Not Supported on EX Series Switches on page 15
EX2200 Switches Hardware Overview on page 25
EX3200 and EX4200 Switches Hardware Overview on page 26
EX4500 Switches Hardware Overview on page 30
EX8208 Switch Hardware Overview on page 33
EX8216 Switch Hardware Overview on page 36
Understanding Power Management on EX Series Switches on page 378
The power management feature for Juniper Networks EX8200 Ethernet Switches helps
ensure that normal operation of the system is not disrupted because of insufficient power
to the switch. It does so by employing a power budget policy.
Power management does the following in its power budget policy:
Budgets power for each switch component that requires power. The amount that
power management budgets for each component is the maximum power that
component might consume. For example, for the fan tray, power management budgets
the amount of power required to run the fans at their maximum speed setting.
Reserves a set amount of power for power supply redundancy. In its default
configuration, power management manages the switch for N+1 power redundancy,
which ensures uninterrupted system operation if one power supply fails. For example,
if a switch has four online 3000 W power supplies, power management reserves 3000
EX3200 and
EX4200
Switches EX4500 Switches
Junos OS 9.0R2 Junos OS 10.2R1
Junos OS 9.4R1 Junos OS 10.2R1
Junos OS 9.0R2 Junos OS 10.2R1
Junos OS 10.0R1 Not applicable
Not applicable Not applicable
Copyright © 2010, Juniper Networks, Inc.
EX8200 Switches
Junos OS 9.4R1
Junos OS 9.4R1
Junos OS 9.4R1
Not applicable
Junos OS 10.2R1