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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Configuring Power Efficiency Management
The Cisco 3900 series, Cisco 2900 series, and Cisco 1900 series integrated services routers generation
2 (ISR G2) have hardware and software features for reducing power consumption. The hardware features
include high-efficiency AC power supplies and electrical components with built-in power saving
features, such as RAM select and clock gating. See your router’s hardware installation guide for more
information on these hardware features. The software features include EnergyWise, a power efficiency
management feature that will power down unused modules, and disable unused clocks to the modules
and peripherals on the router. ISR G2s must be running Cisco IOS Release 15.0(1)M or later to support
EnergyWise. Detailed configuration procedures are included in the Cisco EnergyWise Configuration
Guide, which can be found at Cisco.com.
The following sections provide general information about the EnergyWise feature running on ISR G2s:
• Modules and Interface Supporting EnergyWise, page 125
• Restrictions for Power Efficiency Management and OIR, page 126
Modules and Interface Supporting EnergyWise
Table 1 lists the modules and interface cards that are supported for use with EnergyWise at the time of
this product release.
Table 1 Modules that Support the Power Efficiency Management Feature
Type of Module Module Name
SM
SM-ES2-16-P
SM-SRE
NM
NM-16-ESW
1
1. NM-16ESW is not supported on Cisco 3945E and Cisco 3925E.
NME
NME-16ES-1G-P
HWIC
HWIC-4ESW-POE
HWIC-1G-SFP
HWIC-2FE
ISM
ISM-SRE-300-K9
PVDM3
PVDM3-256
SRE
SM-SRE-700-K9
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