Cisco 2921 User Manual

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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

Cisco 2921 Specifications

General

Ethernet LAN	Yes
Cabling technology	10/100/1000Base-T(X)
Networking standards	IEEE 802.1Q, IEEE 802.1ag, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3ah, IEEE 802.3u
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet interface type	Gigabit Ethernet
Product color	Black
Rack capacity	2U
USB version	2.0
RS-232 ports	1
USB ports quantity	2
Ethernet LAN (RJ-45) ports	3
DHCP client	-
Routing protocols	BGP, EIGRP, OSPF
Supported protocols	IPv4, IPv6, IS-IS, IGMPv3, PIM SM, SSM, DVMRP, IPSec, GRE, BVD, MPLS, L2TPv3, PPP, MLPPP, MLFR, HDLC, RS-232, RS-449, X.21, V.35, EIA-530, PPPoE, ATM
Firewall security	Cisco IOS
Operating altitude	0 - 3000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	10 - 85 %
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Electromagnetic compatibility	47 CFR, ICES-003, EN55022, CISPR22, AS/NZS 3548, VCCI V-3, EN 300-386, EN 61000, EN 55024, CISPR 24EN50082-1

Weight and Dimensions

Depth	469.9 mm
Width	438.2 mm
Height	88.9 mm
Weight	13200 g