Cisco 2901 User Manual

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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
How to Upgrade the Cisco IOS Image
Using TFTP or Remote Copy Protocol to Copy the System Image into Flash Memory
This section describes how to use TFTP or Remote Copy Protocol (RCP) to upgrade the system image.
This is the recommended and most common method of upgrading the system image.
Prerequisites
The following details the logistics of upgrading the system image.
• Install a TFTP server or an RCP server application on a TCP/IP-ready workstation or PC. Many
third-party vendors provide free TFTP server software, which you can find by searching for “TFTP
server” in a web search engine.
If you use TFTP:
– Configure the TFTP application to operate as a TFTP server, not a TFTP client.
– Specify the outbound file directory to which you will download and store the system image.
• Download the new Cisco IOS software image into the workstation or PC. See the “Where Do I
Download the System Image?” section on page 219.
• Establish a console session to the router. We recommend that you connect your PC directly to the
router console port. See the hardware installation guide for your router.
• Verify that the TFTP or RCP server has IP connectivity to the router. If you cannot successfully ping
between the TFTP or RCP server and the router, do one of the following:
– Configure a default gateway on the router.
– Make sure that the server and the router each have an IP address in the same network or subnet.
See the Determining IP Addresses: Frequently Asked Questions tech note.
Tip For more detailed information on how to perform the prerequisites, see the Software Installation and
Upgrade Procedure tech note.
SUMMARY STEPS
1. enable
2. copy tftp flash0:
or
copy rcp flash0:
3. When prompted, enter the IP address of the TFTP or RCP server.
4. When prompted, enter the filename of the Cisco IOS software image to be installed.
5. When prompted, enter the filename as you want it to appear on the router.
6. If an error message appears that says, “Not enough space on device,” do one of the following, as
appropriate:
• If you are certain that all the files in flash memory should be erased, enter y twice when prompted
to erase flash before copying.
• If you are not certain that all files in flash memory should be erased, press Ctrl-Z and follow the
instructions in the “Ensuring Adequate Flash Memory for the New System Image” section on
page 223.
7. If the error message does not appear, enter no when prompted to erase the flash memory before
copying.

Cisco 2901 Specifications

General

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 %
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
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
Ethernet LAN (RJ-45) ports	2
Firewall security	Cisco IOS
Input current	1.5 A
AC input voltage	100 - 240 V
Power source type	AC
AC input frequency	47 - 63 Hz
Power consumption (typical)	40 W
Product color	Black
Rack capacity	1U
Safety	UL 60950-1, CAN/CSA C22.2 No. 60950-1, EN 60950-1, AS/NZS 60950-1, IEC 60950-1
Flash memory	256 MB
Internal memory	512 MB
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	439.4 mm
Width	438.2 mm
Height	44.5 mm
Weight	6100 g