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7-3
Software Configuration Guide—Release 12.2(25)SG
OL-7659-03
Chapter 7 Environmental Monitoring and Power Management
Power Management
Power Management
This section describes the power management feature in the Catalyst 4500 series switches and the
Catalyst 4006 switch, and it includes the following major sections:
• Power Management for the Catalyst 4948 Switches, page 7-3
• Power Management for the Catalyst 4500 Series Switches, page 7-4
• Power Management for the Catalyst 4006 Switch, page 7-16
• Power Consumption of Chassis Components, page 7-19
• Powering Down a Module, page 7-19
Power Management for the Catalyst 4948 Switches
You can select from AC or DC power supplies to ensure that you have enough power for your switch.
The Catalyst 4948 switches support the following power supplies:
–
300 W AC
–
300 W DC
Table 7-2 Alarms for Supervisor Engine and Switching Modules
Event
Alarm
Type
Supervisor LED
Color Description and Action
Supervisor engine
1
temperature sensor
exceeds major threshold
2
1. The Supervisor is not a distinct module on the Catalyst 4948 switch as it is on Catalyst 4500 series switches. See the Catalyst 4948 Installation Guide
for LED behavior on the Catalyst 4948 switch.
2. Temperature sensors monitor key supervisor engine components, including daughter cards.
Major Red Syslog message.
If the over-temperature condition is not corrected,
the system shuts down after 5 min.
Alarm threshold:
• Chassis critical temperature threshold = 95°C
Supervisor fails power on self-test
(POST)
Major Red Syslog message.
The supervisor fails to come up.
Chassis fan tray fails Major Red If not corrected, the system shuts down in 5 minutes.
Supervisor engine temperature sensor
exceeds minor threshold
Minor Orange Syslog message.
Monitor the condition.
Alarm threshold:
• Chassis over temperature threshold = 75°C
No problems None Green