Cisco Catalyst 4500 Series Software Configuration Guide

14-19
Catalyst 4500 Series Switch, Cisco IOS Software Configuration Guide - Cisco IOS XE 3.9.xE and IOS 15.2(5)Ex
Chapter 14 Environmental Monitoring and Power Management
Power Management
Combined Mode Power Resiliency
Note This feature only applies in combined mode when both power supply bays contain the 4200 W AC or
6000 W AC power supply.
Using the combined mode power resiliency feature, you can limit the power usage to a maximum of two
or three (configurable) inputs for 4000W and 6000W power supplies. For 9000W power supplies, you
can limit the power usage to a maximum of 2 to 5 inputs, since the 9000W is a triple input power supply.
With two 4200 W AC or 6000 W AC power supplies, a maximum of four inputs are available. With two
9000W, a maximum of six inputs are available. This feature allows you to cap the power usage to that of
two/three inputs or four/five inputs. If one of the power supplies fails, no loss of power occurs because
you have capped its usage to a smaller number of inputs.
To configure the combined mode resiliency feature, perform this task:
If you have max inputs 3 configured with four “good” (220 V) inputs and you limit the user to 5500 W
instead of 7600 W and one subunit fails or is powered off, you have three quality inputs providing 5500
W and the chassis is powered at the same rate as it was prior to the failure event:
Switch# configuration terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)# power redundancy combined max inputs 3
Switch(config)# end
Switch#
14:32:01: %SYS-5-CONFIG_I: Configured from console by console
Here is the output of the show power command prior to invoking this feature:
Switch# show power
sh power
Power Fan Inline
Supply Model No Type Status Sensor Status
------ ---------------- --------- ----------- ------- -------
PS1 PWR-C45-4200ACV AC 4200W good good good
PS1-1 110V good
PS1-2 110V good
Command Purpose
Step 1
Switch# configure terminal
Enters configuration mode.
Step 2
Switch(config)# power redundancy combined max
inputs {2 | 5}
OR
Switch(config)# power redundancy combined max
inputs {2 | 3}
If a 9000W AC power supply is detected, this
the power usage to four or five inputs.
Note The maximum inputs part of the
command is ignored by all power
supplies other than 9000 W AC.
If a 9000W AC power supply is not detected,
limits the power usage to two or three inputs.
Note The maximum inputs part of the
command is ignored by all power
supplies other than the 4200 W AC or
6000 W AC.
Step 3
Switch(config)# end
Exits configuration mode.

Cisco Catalyst 4500 Series Specifications

General

Series	Catalyst 4500 Series
Category	Switch
Layer Support	Layer 2, Layer 3
Form Factor	Modular chassis
Stackable	No
Chassis Slots	3, 6, 7, 10
Power Supply Options	AC, DC
Redundancy	Power supply, Supervisor engine
Network Management	Cisco IOS Software CLI, SNMP, Cisco Prime Infrastructure
Features	Security, QoS
Port Density	Up to 384 ports per chassis
Security Features	802.1X, ACLs, DHCP Snooping, Dynamic ARP Inspection, IP Source Guard
Supervisor Engine	8-E