Cisco 2911 Configuration Guide

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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter Upgrading the Cisco IOS Software
Information About Upgrading the System Image
Table 1 describes the slot number and name for the Advanced Capability CF slots.
Table 2 describes the slot number and name for the USB slots.
Information About Upgrading the System Image
To upgrade the system image on your router review the following sections:
• Why Would I Upgrade the System Image?, page 218
• Which Cisco IOS Release Is Running on My Router Now?, page 219
• How Do I Choose the New Cisco IOS Release and Feature Set?, page 219
• Where Do I Download the System Image?, page 219
Why Would I Upgrade the System Image?
System images contain the Cisco IOS software. Your router was shipped with an image installed.
Note The Cisco 1941W access point runs a Cisco IOS image that is separate from the Cisco IOS image on the
router.
At some point, you may want to load a different image onto the router or the access point. For example,
you may want to upgrade your IOS software to the latest release, or you may want to use the same Cisco
IOS release for all the routers in a network. Each system image contains different sets of Cisco IOS
features, therefore select an appropriate system image to suit your network requirements.
Table 1 Compact Flash Slot Numbering and Naming
Slot Number CF Filenames
Slot0
1
1. Slot 0 is the default CF slot. It stores the system image,
configurations, and data files. CF must be present in this slot for the
router to boot and perform normal file operations.
flash0:
2
2. flash0: is aliased to flash:.
Slot1
flash1:
Table 2 USB Slot Numbering and Naming
Slot Number USB Filenames
Slot0
usbflash0:
Slot1
usbflash1:

Cisco 2911 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
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
USB version	2.0
RS-232 ports	1
Expansion slots	4 x EHWIC 2 x DSP 1 x ISM
USB ports quantity	2
Ethernet LAN (RJ-45) ports	3
Firewall security	Cisco IOS
Input current	2.2 A
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Power consumption (typical)	50 W
Product color	Black
Rack capacity	2U
Operating altitude	0 - 4000 m
Non-operating altitude	0 - 4570 m
Storage temperature (T-T)	-40 - 80 °C
Operating temperature (T-T)	0 - 40 °C
Storage relative humidity (H-H)	5 - 95 %
Operating relative humidity (H-H)	5 - 85 %
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	304.8 mm
Width	438.2 mm
Height	88.9 mm
Weight	8200 g